Home / 260,724,609.60-391,086,914.40-99,145,550.40

Finding the Fourth Proportional to 260,724,609.60, 391,086,914.40 and 99,145,550.40

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Solution

The fourth proportional to 260,724,609.60, 391,086,914.40 and 99,145,550.40 is: 148,718,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,724,609.60 : 391,086,914.40 = 99,145,550.40 : x
  2. Step 2: Convert to fraction form
    260,724,609.60/391,086,914.40 = 99,145,550.40/x
  3. Step 3: Cross multiply
    260,724,609.60x = 391,086,914.40 × 99,145,550.40
  4. Step 4: Simplify right side
    260,724,609.60x = 38,774,527,382,425,688
  5. Step 5: Solve for x
    x = 38,774,527,382,425,688/260,724,609.60
  6. Step 6: Final answer
    x = 148,718,325.60

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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.