Home / 160,416,909.40-221,368,957.68-90,816,727.92

Finding the Fourth Proportional to 160,416,909.40, 221,368,957.68 and 90,816,727.92

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Solution

The fourth proportional to 160,416,909.40, 221,368,957.68 and 90,816,727.92 is: 125,323,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,416,909.40 : 221,368,957.68 = 90,816,727.92 : x
  2. Step 2: Convert to fraction form
    160,416,909.40/221,368,957.68 = 90,816,727.92/x
  3. Step 3: Cross multiply
    160,416,909.40x = 221,368,957.68 × 90,816,727.92
  4. Step 4: Simplify right side
    160,416,909.40x = 20,104,004,399,558,556
  5. Step 5: Solve for x
    x = 20,104,004,399,558,556/160,416,909.40
  6. Step 6: Final answer
    x = 125,323,474.16

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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.