Home / 92,165,901.40-138,248,852.10-77,385,280.60

Finding the Fourth Proportional to 92,165,901.40, 138,248,852.10 and 77,385,280.60

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Solution

The fourth proportional to 92,165,901.40, 138,248,852.10 and 77,385,280.60 is: 116,077,920.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,165,901.40 : 138,248,852.10 = 77,385,280.60 : x
  2. Step 2: Convert to fraction form
    92,165,901.40/138,248,852.10 = 77,385,280.60/x
  3. Step 3: Cross multiply
    92,165,901.40x = 138,248,852.10 × 77,385,280.60
  4. Step 4: Simplify right side
    92,165,901.40x = 10,698,426,212,386,398
  5. Step 5: Solve for x
    x = 10,698,426,212,386,398/92,165,901.40
  6. Step 6: Final answer
    x = 116,077,920.90

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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.