Home / 931,437,987.40-1,397,156,981.10-792,944,462.80

Finding the Fourth Proportional to 931,437,987.40, 1,397,156,981.10 and 792,944,462.80

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Solution

The fourth proportional to 931,437,987.40, 1,397,156,981.10 and 792,944,462.80 is: 1,189,416,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,437,987.40 : 1,397,156,981.10 = 792,944,462.80 : x
  2. Step 2: Convert to fraction form
    931,437,987.40/1,397,156,981.10 = 792,944,462.80/x
  3. Step 3: Cross multiply
    931,437,987.40x = 1,397,156,981.10 × 792,944,462.80
  4. Step 4: Simplify right side
    931,437,987.40x = 1,107,867,891,825,609,088
  5. Step 5: Solve for x
    x = 1,107,867,891,825,609,088/931,437,987.40
  6. Step 6: Final answer
    x = 1,189,416,694.20

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Half scale
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Double scale
Find fourth proportional to 931,437,988.40, 1,397,156,982.60 and 792,944,463.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.