Home / 140,220,834.40-210,331,251.60-79,754,658.40

Finding the Fourth Proportional to 140,220,834.40, 210,331,251.60 and 79,754,658.40

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Solution

The fourth proportional to 140,220,834.40, 210,331,251.60 and 79,754,658.40 is: 119,631,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,220,834.40 : 210,331,251.60 = 79,754,658.40 : x
  2. Step 2: Convert to fraction form
    140,220,834.40/210,331,251.60 = 79,754,658.40/x
  3. Step 3: Cross multiply
    140,220,834.40x = 210,331,251.60 × 79,754,658.40
  4. Step 4: Simplify right side
    140,220,834.40x = 16,774,897,122,202,454
  5. Step 5: Solve for x
    x = 16,774,897,122,202,454/140,220,834.40
  6. Step 6: Final answer
    x = 119,631,987.60

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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.