Home / 147,744,712.90-221,617,069.35-86,522,709.70

Finding the Fourth Proportional to 147,744,712.90, 221,617,069.35 and 86,522,709.70

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Solution

The fourth proportional to 147,744,712.90, 221,617,069.35 and 86,522,709.70 is: 129,784,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,744,712.90 : 221,617,069.35 = 86,522,709.70 : x
  2. Step 2: Convert to fraction form
    147,744,712.90/221,617,069.35 = 86,522,709.70/x
  3. Step 3: Cross multiply
    147,744,712.90x = 221,617,069.35 × 86,522,709.70
  4. Step 4: Simplify right side
    147,744,712.90x = 19,174,909,355,934,816
  5. Step 5: Solve for x
    x = 19,174,909,355,934,816/147,744,712.90
  6. Step 6: Final answer
    x = 129,784,064.55

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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.