Home / 145,521,947.60-218,282,921.40-87,323,253.20

Finding the Fourth Proportional to 145,521,947.60, 218,282,921.40 and 87,323,253.20

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Solution

The fourth proportional to 145,521,947.60, 218,282,921.40 and 87,323,253.20 is: 130,984,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,521,947.60 : 218,282,921.40 = 87,323,253.20 : x
  2. Step 2: Convert to fraction form
    145,521,947.60/218,282,921.40 = 87,323,253.20/x
  3. Step 3: Cross multiply
    145,521,947.60x = 218,282,921.40 × 87,323,253.20
  4. Step 4: Simplify right side
    145,521,947.60x = 19,061,174,814,647,900
  5. Step 5: Solve for x
    x = 19,061,174,814,647,900/145,521,947.60
  6. Step 6: Final answer
    x = 130,984,879.80

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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.