Home / 139,361,833.28-209,029,234.56-42,318,381.44

Finding the Fourth Proportional to 139,361,833.28, 209,029,234.56 and 42,318,381.44

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Solution

The fourth proportional to 139,361,833.28, 209,029,234.56 and 42,318,381.44 is: 63,473,468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,361,833.28 : 209,029,234.56 = 42,318,381.44 : x
  2. Step 2: Convert to fraction form
    139,361,833.28/209,029,234.56 = 42,318,381.44/x
  3. Step 3: Cross multiply
    139,361,833.28x = 209,029,234.56 × 42,318,381.44
  4. Step 4: Simplify right side
    139,361,833.28x = 8,845,778,880,221,310
  5. Step 5: Solve for x
    x = 8,845,778,880,221,310/139,361,833.28
  6. Step 6: Final answer
    x = 63,473,468.11

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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.