Home / 148,487,979.68-204,938,056.60-86,608,318.24

Finding the Fourth Proportional to 148,487,979.68, 204,938,056.60 and 86,608,318.24

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Solution

The fourth proportional to 148,487,979.68, 204,938,056.60 and 86,608,318.24 is: 119,533,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,487,979.68 : 204,938,056.60 = 86,608,318.24 : x
  2. Step 2: Convert to fraction form
    148,487,979.68/204,938,056.60 = 86,608,318.24/x
  3. Step 3: Cross multiply
    148,487,979.68x = 204,938,056.60 × 86,608,318.24
  4. Step 4: Simplify right side
    148,487,979.68x = 17,749,340,425,499,930
  5. Step 5: Solve for x
    x = 17,749,340,425,499,930/148,487,979.68
  6. Step 6: Final answer
    x = 119,533,853.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.