Home / 79,070,007.30-109,060,359.93-72,564,646.02

Finding the Fourth Proportional to 79,070,007.30, 109,060,359.93 and 72,564,646.02

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Solution

The fourth proportional to 79,070,007.30, 109,060,359.93 and 72,564,646.02 is: 100,087,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,070,007.30 : 109,060,359.93 = 72,564,646.02 : x
  2. Step 2: Convert to fraction form
    79,070,007.30/109,060,359.93 = 72,564,646.02/x
  3. Step 3: Cross multiply
    79,070,007.30x = 109,060,359.93 × 72,564,646.02
  4. Step 4: Simplify right side
    79,070,007.30x = 7,913,926,413,134,242
  5. Step 5: Solve for x
    x = 7,913,926,413,134,242/79,070,007.30
  6. Step 6: Final answer
    x = 100,087,589.26

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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.