Home / 132,362,459.20-198,705,429.60-74,894,708.80

Finding the Fourth Proportional to 132,362,459.20, 198,705,429.60 and 74,894,708.80

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Solution

The fourth proportional to 132,362,459.20, 198,705,429.60 and 74,894,708.80 is: 112,433,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,362,459.20 : 198,705,429.60 = 74,894,708.80 : x
  2. Step 2: Convert to fraction form
    132,362,459.20/198,705,429.60 = 74,894,708.80/x
  3. Step 3: Cross multiply
    132,362,459.20x = 198,705,429.60 × 74,894,708.80
  4. Step 4: Simplify right side
    132,362,459.20x = 14,881,985,286,870,900
  5. Step 5: Solve for x
    x = 14,881,985,286,870,900/132,362,459.20
  6. Step 6: Final answer
    x = 112,433,581.07

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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.