Home / 140,778,302.16-194,281,671.24-78,918,511.44

Finding the Fourth Proportional to 140,778,302.16, 194,281,671.24 and 78,918,511.44

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Solution

The fourth proportional to 140,778,302.16, 194,281,671.24 and 78,918,511.44 is: 108,911,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,778,302.16 : 194,281,671.24 = 78,918,511.44 : x
  2. Step 2: Convert to fraction form
    140,778,302.16/194,281,671.24 = 78,918,511.44/x
  3. Step 3: Cross multiply
    140,778,302.16x = 194,281,671.24 × 78,918,511.44
  4. Step 4: Simplify right side
    140,778,302.16x = 15,332,420,294,336,260
  5. Step 5: Solve for x
    x = 15,332,420,294,336,260/140,778,302.16
  6. Step 6: Final answer
    x = 108,911,814.24

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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.