Home / 260,724,005.10-391,086,007.65-99,144,945.90

Finding the Fourth Proportional to 260,724,005.10, 391,086,007.65 and 99,144,945.90

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Solution

The fourth proportional to 260,724,005.10, 391,086,007.65 and 99,144,945.90 is: 148,717,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,724,005.10 : 391,086,007.65 = 99,144,945.90 : x
  2. Step 2: Convert to fraction form
    260,724,005.10/391,086,007.65 = 99,144,945.90/x
  3. Step 3: Cross multiply
    260,724,005.10x = 391,086,007.65 × 99,144,945.90
  4. Step 4: Simplify right side
    260,724,005.10x = 38,774,201,070,706,240
  5. Step 5: Solve for x
    x = 38,774,201,070,706,240/260,724,005.10
  6. Step 6: Final answer
    x = 148,717,418.85

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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.