Home / 139,916,800.53-209,867,635.14-42,872,795.28

Finding the Fourth Proportional to 139,916,800.53, 209,867,635.14 and 42,872,795.28

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Solution

The fourth proportional to 139,916,800.53, 209,867,635.14 and 42,872,795.28 is: 64,306,874.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,916,800.53 : 209,867,635.14 = 42,872,795.28 : x
  2. Step 2: Convert to fraction form
    139,916,800.53/209,867,635.14 = 42,872,795.28/x
  3. Step 3: Cross multiply
    139,916,800.53x = 209,867,635.14 × 42,872,795.28
  4. Step 4: Simplify right side
    139,916,800.53x = 8,997,612,157,254,954
  5. Step 5: Solve for x
    x = 8,997,612,157,254,954/139,916,800.53
  6. Step 6: Final answer
    x = 64,306,874.68

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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.