Home / 1,047,861,419.80-1,571,792,129.70-930,960,146.20

Finding the Fourth Proportional to 1,047,861,419.80, 1,571,792,129.70 and 930,960,146.20

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Solution

The fourth proportional to 1,047,861,419.80, 1,571,792,129.70 and 930,960,146.20 is: 1,396,440,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,861,419.80 : 1,571,792,129.70 = 930,960,146.20 : x
  2. Step 2: Convert to fraction form
    1,047,861,419.80/1,571,792,129.70 = 930,960,146.20/x
  3. Step 3: Cross multiply
    1,047,861,419.80x = 1,571,792,129.70 × 930,960,146.20
  4. Step 4: Simplify right side
    1,047,861,419.80x = 1,463,275,830,861,521,408
  5. Step 5: Solve for x
    x = 1,463,275,830,861,521,408/1,047,861,419.80
  6. Step 6: Final answer
    x = 1,396,440,219.30

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Half scale
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Double scale
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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.