Home / 7,138,850.90-9,851,691.09-3,875,701.10

Finding the Fourth Proportional to 7,138,850.90, 9,851,691.09 and 3,875,701.10

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Solution

The fourth proportional to 7,138,850.90, 9,851,691.09 and 3,875,701.10 is: 5,348,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,850.90 : 9,851,691.09 = 3,875,701.10 : x
  2. Step 2: Convert to fraction form
    7,138,850.90/9,851,691.09 = 3,875,701.10/x
  3. Step 3: Cross multiply
    7,138,850.90x = 9,851,691.09 × 3,875,701.10
  4. Step 4: Simplify right side
    7,138,850.90x = 38,182,209,994,373.20
  5. Step 5: Solve for x
    x = 38,182,209,994,373.20/7,138,850.90
  6. Step 6: Final answer
    x = 5,348,509.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.