Home / 142,337,665.80-213,081,345.90-84,800,320.20

Finding the Fourth Proportional to 142,337,665.80, 213,081,345.90 and 84,800,320.20

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Solution

The fourth proportional to 142,337,665.80, 213,081,345.90 and 84,800,320.20 is: 126,947,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,337,665.80 : 213,081,345.90 = 84,800,320.20 : x
  2. Step 2: Convert to fraction form
    142,337,665.80/213,081,345.90 = 84,800,320.20/x
  3. Step 3: Cross multiply
    142,337,665.80x = 213,081,345.90 × 84,800,320.20
  4. Step 4: Simplify right side
    142,337,665.80x = 18,069,366,360,966,960
  5. Step 5: Solve for x
    x = 18,069,366,360,966,960/142,337,665.80
  6. Step 6: Final answer
    x = 126,947,187.59

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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.