Home / 130,494,612.47-180,087,187.77-71,761,745.93

Finding the Fourth Proportional to 130,494,612.47, 180,087,187.77 and 71,761,745.93

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Solution

The fourth proportional to 130,494,612.47, 180,087,187.77 and 71,761,745.93 is: 99,033,751.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,494,612.47 : 180,087,187.77 = 71,761,745.93 : x
  2. Step 2: Convert to fraction form
    130,494,612.47/180,087,187.77 = 71,761,745.93/x
  3. Step 3: Cross multiply
    130,494,612.47x = 180,087,187.77 × 71,761,745.93
  4. Step 4: Simplify right side
    130,494,612.47x = 12,923,371,013,098,508
  5. Step 5: Solve for x
    x = 12,923,371,013,098,508/130,494,612.47
  6. Step 6: Final answer
    x = 99,033,751.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.