Home / 130,836,617.69-180,555,726.47-72,101,390.22

Finding the Fourth Proportional to 130,836,617.69, 180,555,726.47 and 72,101,390.22

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Solution

The fourth proportional to 130,836,617.69, 180,555,726.47 and 72,101,390.22 is: 99,500,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,836,617.69 : 180,555,726.47 = 72,101,390.22 : x
  2. Step 2: Convert to fraction form
    130,836,617.69/180,555,726.47 = 72,101,390.22/x
  3. Step 3: Cross multiply
    130,836,617.69x = 180,555,726.47 × 72,101,390.22
  4. Step 4: Simplify right side
    130,836,617.69x = 13,018,318,890,309,266
  5. Step 5: Solve for x
    x = 13,018,318,890,309,266/130,836,617.69
  6. Step 6: Final answer
    x = 99,500,576.53

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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.