Home / 7,345,987.80-11,018,981.70-6,170,256.60

Finding the Fourth Proportional to 7,345,987.80, 11,018,981.70 and 6,170,256.60

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Solution

The fourth proportional to 7,345,987.80, 11,018,981.70 and 6,170,256.60 is: 9,255,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345,987.80 : 11,018,981.70 = 6,170,256.60 : x
  2. Step 2: Convert to fraction form
    7,345,987.80/11,018,981.70 = 6,170,256.60/x
  3. Step 3: Cross multiply
    7,345,987.80x = 11,018,981.70 × 6,170,256.60
  4. Step 4: Simplify right side
    7,345,987.80x = 67,989,944,559,704.21
  5. Step 5: Solve for x
    x = 67,989,944,559,704.21/7,345,987.80
  6. Step 6: Final answer
    x = 9,255,384.90

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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.