Home / 487,060,320.74-730,712,297.04-142,013,947.73

Finding the Fourth Proportional to 487,060,320.74, 730,712,297.04 and 142,013,947.73

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Solution

The fourth proportional to 487,060,320.74, 730,712,297.04 and 142,013,947.73 is: 213,056,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,060,320.74 : 730,712,297.04 = 142,013,947.73 : x
  2. Step 2: Convert to fraction form
    487,060,320.74/730,712,297.04 = 142,013,947.73/x
  3. Step 3: Cross multiply
    487,060,320.74x = 730,712,297.04 × 142,013,947.73
  4. Step 4: Simplify right side
    487,060,320.74x = 103,771,337,953,143,152
  5. Step 5: Solve for x
    x = 103,771,337,953,143,152/487,060,320.74
  6. Step 6: Final answer
    x = 213,056,439.90

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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.