Home / 20,478,390.72-30,726,547.92-9,703,381.92

Finding the Fourth Proportional to 20,478,390.72, 30,726,547.92 and 9,703,381.92

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Solution

The fourth proportional to 20,478,390.72, 30,726,547.92 and 9,703,381.92 is: 14,559,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,390.72 : 30,726,547.92 = 9,703,381.92 : x
  2. Step 2: Convert to fraction form
    20,478,390.72/30,726,547.92 = 9,703,381.92/x
  3. Step 3: Cross multiply
    20,478,390.72x = 30,726,547.92 × 9,703,381.92
  4. Step 4: Simplify right side
    20,478,390.72x = 298,151,429,550,941.62
  5. Step 5: Solve for x
    x = 298,151,429,550,941.62/20,478,390.72
  6. Step 6: Final answer
    x = 14,559,319.32

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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.