Home / 72,406,312.20-108,614,717.10-43,590,400.20

Finding the Fourth Proportional to 72,406,312.20, 108,614,717.10 and 43,590,400.20

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Solution

The fourth proportional to 72,406,312.20, 108,614,717.10 and 43,590,400.20 is: 65,388,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406,312.20 : 108,614,717.10 = 43,590,400.20 : x
  2. Step 2: Convert to fraction form
    72,406,312.20/108,614,717.10 = 43,590,400.20/x
  3. Step 3: Cross multiply
    72,406,312.20x = 108,614,717.10 × 43,590,400.20
  4. Step 4: Simplify right side
    72,406,312.20x = 4,734,558,985,998,783
  5. Step 5: Solve for x
    x = 4,734,558,985,998,783/72,406,312.20
  6. Step 6: Final answer
    x = 65,388,760.21

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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.