Home / 290,020,358.13-435,026,277.66-71,670,694.32

Finding the Fourth Proportional to 290,020,358.13, 435,026,277.66 and 71,670,694.32

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Solution

The fourth proportional to 290,020,358.13, 435,026,277.66 and 71,670,694.32 is: 107,504,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,020,358.13 : 435,026,277.66 = 71,670,694.32 : x
  2. Step 2: Convert to fraction form
    290,020,358.13/435,026,277.66 = 71,670,694.32/x
  3. Step 3: Cross multiply
    290,020,358.13x = 435,026,277.66 × 71,670,694.32
  4. Step 4: Simplify right side
    290,020,358.13x = 31,178,635,367,337,304
  5. Step 5: Solve for x
    x = 31,178,635,367,337,304/290,020,358.13
  6. Step 6: Final answer
    x = 107,504,988.85

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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.