Home / 145,764,920.42-200,084,847.65-128,875,061.14

Finding the Fourth Proportional to 145,764,920.42, 200,084,847.65 and 128,875,061.14

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Solution

The fourth proportional to 145,764,920.42, 200,084,847.65 and 128,875,061.14 is: 176,900,909.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,764,920.42 : 200,084,847.65 = 128,875,061.14 : x
  2. Step 2: Convert to fraction form
    145,764,920.42/200,084,847.65 = 128,875,061.14/x
  3. Step 3: Cross multiply
    145,764,920.42x = 200,084,847.65 × 128,875,061.14
  4. Step 4: Simplify right side
    145,764,920.42x = 25,785,946,974,145,596
  5. Step 5: Solve for x
    x = 25,785,946,974,145,596/145,764,920.42
  6. Step 6: Final answer
    x = 176,900,909.36

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.