Home / 42,786,442.80-64,179,664.20-39,091,287.60

Finding the Fourth Proportional to 42,786,442.80, 64,179,664.20 and 39,091,287.60

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Solution

The fourth proportional to 42,786,442.80, 64,179,664.20 and 39,091,287.60 is: 58,636,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,786,442.80 : 64,179,664.20 = 39,091,287.60 : x
  2. Step 2: Convert to fraction form
    42,786,442.80/64,179,664.20 = 39,091,287.60/x
  3. Step 3: Cross multiply
    42,786,442.80x = 64,179,664.20 × 39,091,287.60
  4. Step 4: Simplify right side
    42,786,442.80x = 2,508,865,711,313,624
  5. Step 5: Solve for x
    x = 2,508,865,711,313,624/42,786,442.80
  6. Step 6: Final answer
    x = 58,636,931.40

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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.