Home / 100,744,428.10-151,452,565.35-85,963,807.30

Finding the Fourth Proportional to 100,744,428.10, 151,452,565.35 and 85,963,807.30

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Solution

The fourth proportional to 100,744,428.10, 151,452,565.35 and 85,963,807.30 is: 129,232,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,744,428.10 : 151,452,565.35 = 85,963,807.30 : x
  2. Step 2: Convert to fraction form
    100,744,428.10/151,452,565.35 = 85,963,807.30/x
  3. Step 3: Cross multiply
    100,744,428.10x = 151,452,565.35 × 85,963,807.30
  4. Step 4: Simplify right side
    100,744,428.10x = 13,019,439,142,838,056
  5. Step 5: Solve for x
    x = 13,019,439,142,838,056/100,744,428.10
  6. Step 6: Final answer
    x = 129,232,349.50

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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.