Home / 113,315,336.10-169,973,004.15-78,877,959.30

Finding the Fourth Proportional to 113,315,336.10, 169,973,004.15 and 78,877,959.30

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Solution

The fourth proportional to 113,315,336.10, 169,973,004.15 and 78,877,959.30 is: 118,316,938.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,336.10 : 169,973,004.15 = 78,877,959.30 : x
  2. Step 2: Convert to fraction form
    113,315,336.10/169,973,004.15 = 78,877,959.30/x
  3. Step 3: Cross multiply
    113,315,336.10x = 169,973,004.15 × 78,877,959.30
  4. Step 4: Simplify right side
    113,315,336.10x = 13,407,123,703,442,432
  5. Step 5: Solve for x
    x = 13,407,123,703,442,432/113,315,336.10
  6. Step 6: Final answer
    x = 118,316,938.95

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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.