Home / 425,336,724.80-638,005,087.20-102,220,596.80

Finding the Fourth Proportional to 425,336,724.80, 638,005,087.20 and 102,220,596.80

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Solution

The fourth proportional to 425,336,724.80, 638,005,087.20 and 102,220,596.80 is: 153,330,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,336,724.80 : 638,005,087.20 = 102,220,596.80 : x
  2. Step 2: Convert to fraction form
    425,336,724.80/638,005,087.20 = 102,220,596.80/x
  3. Step 3: Cross multiply
    425,336,724.80x = 638,005,087.20 × 102,220,596.80
  4. Step 4: Simplify right side
    425,336,724.80x = 65,217,260,775,020,040
  5. Step 5: Solve for x
    x = 65,217,260,775,020,040/425,336,724.80
  6. Step 6: Final answer
    x = 153,330,895.20

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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.