Home / 487,213,579.11-730,863,314.64-137,462,710.77

Finding the Fourth Proportional to 487,213,579.11, 730,863,314.64 and 137,462,710.77

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Solution

The fourth proportional to 487,213,579.11, 730,863,314.64 and 137,462,710.77 is: 206,206,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,213,579.11 : 730,863,314.64 = 137,462,710.77 : x
  2. Step 2: Convert to fraction form
    487,213,579.11/730,863,314.64 = 137,462,710.77/x
  3. Step 3: Cross multiply
    487,213,579.11x = 730,863,314.64 × 137,462,710.77
  4. Step 4: Simplify right side
    487,213,579.11x = 100,466,452,432,761,840
  5. Step 5: Solve for x
    x = 100,466,452,432,761,840/487,213,579.11
  6. Step 6: Final answer
    x = 206,206,182.96

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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.