Home / 113,315,251.60-169,972,877.40-78,877,874.80

Finding the Fourth Proportional to 113,315,251.60, 169,972,877.40 and 78,877,874.80

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Solution

The fourth proportional to 113,315,251.60, 169,972,877.40 and 78,877,874.80 is: 118,316,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,251.60 : 169,972,877.40 = 78,877,874.80 : x
  2. Step 2: Convert to fraction form
    113,315,251.60/169,972,877.40 = 78,877,874.80/x
  3. Step 3: Cross multiply
    113,315,251.60x = 169,972,877.40 × 78,877,874.80
  4. Step 4: Simplify right side
    113,315,251.60x = 13,407,099,342,952,950
  5. Step 5: Solve for x
    x = 13,407,099,342,952,950/113,315,251.60
  6. Step 6: Final answer
    x = 118,316,812.20

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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.