Home / 143,689,105.20-215,533,657.80-98,339,473.20

Finding the Fourth Proportional to 143,689,105.20, 215,533,657.80 and 98,339,473.20

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Solution

The fourth proportional to 143,689,105.20, 215,533,657.80 and 98,339,473.20 is: 147,509,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,689,105.20 : 215,533,657.80 = 98,339,473.20 : x
  2. Step 2: Convert to fraction form
    143,689,105.20/215,533,657.80 = 98,339,473.20/x
  3. Step 3: Cross multiply
    143,689,105.20x = 215,533,657.80 × 98,339,473.20
  4. Step 4: Simplify right side
    143,689,105.20x = 21,195,466,364,921,072
  5. Step 5: Solve for x
    x = 21,195,466,364,921,072/143,689,105.20
  6. Step 6: Final answer
    x = 147,509,209.80

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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.