Home / 72,607,838.20-108,911,757.30-72,182,685.40

Finding the Fourth Proportional to 72,607,838.20, 108,911,757.30 and 72,182,685.40

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Solution

The fourth proportional to 72,607,838.20, 108,911,757.30 and 72,182,685.40 is: 108,274,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,607,838.20 : 108,911,757.30 = 72,182,685.40 : x
  2. Step 2: Convert to fraction form
    72,607,838.20/108,911,757.30 = 72,182,685.40/x
  3. Step 3: Cross multiply
    72,607,838.20x = 108,911,757.30 × 72,182,685.40
  4. Step 4: Simplify right side
    72,607,838.20x = 7,861,543,113,547,054
  5. Step 5: Solve for x
    x = 7,861,543,113,547,054/72,607,838.20
  6. Step 6: Final answer
    x = 108,274,028.10

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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.