Home / 20,564,309.08-30,662,613.40-19,999,320.86

Finding the Fourth Proportional to 20,564,309.08, 30,662,613.40 and 19,999,320.86

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Solution

The fourth proportional to 20,564,309.08, 30,662,613.40 and 19,999,320.86 is: 29,820,182.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564,309.08 : 30,662,613.40 = 19,999,320.86 : x
  2. Step 2: Convert to fraction form
    20,564,309.08/30,662,613.40 = 19,999,320.86/x
  3. Step 3: Cross multiply
    20,564,309.08x = 30,662,613.40 × 19,999,320.86
  4. Step 4: Simplify right side
    20,564,309.08x = 613,231,443,941,289.62
  5. Step 5: Solve for x
    x = 613,231,443,941,289.62/20,564,309.08
  6. Step 6: Final answer
    x = 29,820,182.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.