Home / 20,023,495.71-30,185,323.19-18,688,737.49

Finding the Fourth Proportional to 20,023,495.71, 30,185,323.19 and 18,688,737.49

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Solution

The fourth proportional to 20,023,495.71, 30,185,323.19 and 18,688,737.49 is: 28,173,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023,495.71 : 30,185,323.19 = 18,688,737.49 : x
  2. Step 2: Convert to fraction form
    20,023,495.71/30,185,323.19 = 18,688,737.49/x
  3. Step 3: Cross multiply
    20,023,495.71x = 30,185,323.19 × 18,688,737.49
  4. Step 4: Simplify right side
    20,023,495.71x = 564,125,581,155,019.38
  5. Step 5: Solve for x
    x = 564,125,581,155,019.38/20,023,495.71
  6. Step 6: Final answer
    x = 28,173,181.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.