Home / 98,330,947.80-147,496,421.70-80,155,665.60

Finding the Fourth Proportional to 98,330,947.80, 147,496,421.70 and 80,155,665.60

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Solution

The fourth proportional to 98,330,947.80, 147,496,421.70 and 80,155,665.60 is: 120,233,498.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,330,947.80 : 147,496,421.70 = 80,155,665.60 : x
  2. Step 2: Convert to fraction form
    98,330,947.80/147,496,421.70 = 80,155,665.60/x
  3. Step 3: Cross multiply
    98,330,947.80x = 147,496,421.70 × 80,155,665.60
  4. Step 4: Simplify right side
    98,330,947.80x = 11,822,673,854,981,782
  5. Step 5: Solve for x
    x = 11,822,673,854,981,782/98,330,947.80
  6. Step 6: Final answer
    x = 120,233,498.40

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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.