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Finding the Fourth Proportional to 100,872,001.30, 151,308,001.95 and 91,784,360.20

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Solution

The fourth proportional to 100,872,001.30, 151,308,001.95 and 91,784,360.20 is: 137,676,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,872,001.30 : 151,308,001.95 = 91,784,360.20 : x
  2. Step 2: Convert to fraction form
    100,872,001.30/151,308,001.95 = 91,784,360.20/x
  3. Step 3: Cross multiply
    100,872,001.30x = 151,308,001.95 × 91,784,360.20
  4. Step 4: Simplify right side
    100,872,001.30x = 13,887,708,152,121,102
  5. Step 5: Solve for x
    x = 13,887,708,152,121,102/100,872,001.30
  6. Step 6: Final answer
    x = 137,676,540.30

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