Home / 142,189,358.49-213,292,009.31-39,945,424.59

Finding the Fourth Proportional to 142,189,358.49, 213,292,009.31 and 39,945,424.59

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Solution

The fourth proportional to 142,189,358.49, 213,292,009.31 and 39,945,424.59 is: 59,920,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,189,358.49 : 213,292,009.31 = 39,945,424.59 : x
  2. Step 2: Convert to fraction form
    142,189,358.49/213,292,009.31 = 39,945,424.59/x
  3. Step 3: Cross multiply
    142,189,358.49x = 213,292,009.31 × 39,945,424.59
  4. Step 4: Simplify right side
    142,189,358.49x = 8,520,039,873,342,457
  5. Step 5: Solve for x
    x = 8,520,039,873,342,457/142,189,358.49
  6. Step 6: Final answer
    x = 59,920,376.35

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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.