Home / 139,677,148.40-209,385,445.82-47,497,895.32

Finding the Fourth Proportional to 139,677,148.40, 209,385,445.82 and 47,497,895.32

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Solution

The fourth proportional to 139,677,148.40, 209,385,445.82 and 47,497,895.32 is: 71,202,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,677,148.40 : 209,385,445.82 = 47,497,895.32 : x
  2. Step 2: Convert to fraction form
    139,677,148.40/209,385,445.82 = 47,497,895.32/x
  3. Step 3: Cross multiply
    139,677,148.40x = 209,385,445.82 × 47,497,895.32
  4. Step 4: Simplify right side
    139,677,148.40x = 9,945,367,987,089,892
  5. Step 5: Solve for x
    x = 9,945,367,987,089,892/139,677,148.40
  6. Step 6: Final answer
    x = 71,202,541.73

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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.