Home / 144,440,281.52-199,327,974.86-78,360,779.78

Finding the Fourth Proportional to 144,440,281.52, 199,327,974.86 and 78,360,779.78

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Solution

The fourth proportional to 144,440,281.52, 199,327,974.86 and 78,360,779.78 is: 108,138,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,440,281.52 : 199,327,974.86 = 78,360,779.78 : x
  2. Step 2: Convert to fraction form
    144,440,281.52/199,327,974.86 = 78,360,779.78/x
  3. Step 3: Cross multiply
    144,440,281.52x = 199,327,974.86 × 78,360,779.78
  4. Step 4: Simplify right side
    144,440,281.52x = 15,619,495,541,997,838
  5. Step 5: Solve for x
    x = 15,619,495,541,997,838/144,440,281.52
  6. Step 6: Final answer
    x = 108,138,085.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.