Home / 130,745,702.09-180,437,229.11-72,008,352.34

Finding the Fourth Proportional to 130,745,702.09, 180,437,229.11 and 72,008,352.34

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Solution

The fourth proportional to 130,745,702.09, 180,437,229.11 and 72,008,352.34 is: 99,376,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,745,702.09 : 180,437,229.11 = 72,008,352.34 : x
  2. Step 2: Convert to fraction form
    130,745,702.09/180,437,229.11 = 72,008,352.34/x
  3. Step 3: Cross multiply
    130,745,702.09x = 180,437,229.11 × 72,008,352.34
  4. Step 4: Simplify right side
    130,745,702.09x = 12,992,987,568,735,114
  5. Step 5: Solve for x
    x = 12,992,987,568,735,114/130,745,702.09
  6. Step 6: Final answer
    x = 99,376,020.48

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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.