Home / 130,459,633.32-180,029,704.88-71,721,872.52

Finding the Fourth Proportional to 130,459,633.32, 180,029,704.88 and 71,721,872.52

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Solution

The fourth proportional to 130,459,633.32, 180,029,704.88 and 71,721,872.52 is: 98,973,661.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,459,633.32 : 180,029,704.88 = 71,721,872.52 : x
  2. Step 2: Convert to fraction form
    130,459,633.32/180,029,704.88 = 71,721,872.52/x
  3. Step 3: Cross multiply
    130,459,633.32x = 180,029,704.88 × 71,721,872.52
  4. Step 4: Simplify right side
    130,459,633.32x = 12,912,067,543,216,580
  5. Step 5: Solve for x
    x = 12,912,067,543,216,580/130,459,633.32
  6. Step 6: Final answer
    x = 98,973,661.16

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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.