Home / 20,472,543.32-30,724,066.69-15,021,723.44

Finding the Fourth Proportional to 20,472,543.32, 30,724,066.69 and 15,021,723.44

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Solution

The fourth proportional to 20,472,543.32, 30,724,066.69 and 15,021,723.44 is: 22,543,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472,543.32 : 30,724,066.69 = 15,021,723.44 : x
  2. Step 2: Convert to fraction form
    20,472,543.32/30,724,066.69 = 15,021,723.44/x
  3. Step 3: Cross multiply
    20,472,543.32x = 30,724,066.69 × 15,021,723.44
  4. Step 4: Simplify right side
    20,472,543.32x = 461,528,432,808,552.12
  5. Step 5: Solve for x
    x = 461,528,432,808,552.12/20,472,543.32
  6. Step 6: Final answer
    x = 22,543,776.11

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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.