Home / 99,103,705.20-148,655,557.80-78,696,370.80

Finding the Fourth Proportional to 99,103,705.20, 148,655,557.80 and 78,696,370.80

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Solution

The fourth proportional to 99,103,705.20, 148,655,557.80 and 78,696,370.80 is: 118,044,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103,705.20 : 148,655,557.80 = 78,696,370.80 : x
  2. Step 2: Convert to fraction form
    99,103,705.20/148,655,557.80 = 78,696,370.80/x
  3. Step 3: Cross multiply
    99,103,705.20x = 148,655,557.80 × 78,696,370.80
  4. Step 4: Simplify right side
    99,103,705.20x = 11,698,652,898,109,632
  5. Step 5: Solve for x
    x = 11,698,652,898,109,632/99,103,705.20
  6. Step 6: Final answer
    x = 118,044,556.20

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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.