Home / 128,684,291.42-177,585,584.01-69,946,920.29

Finding the Fourth Proportional to 128,684,291.42, 177,585,584.01 and 69,946,920.29

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Solution

The fourth proportional to 128,684,291.42, 177,585,584.01 and 69,946,920.29 is: 96,527,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,684,291.42 : 177,585,584.01 = 69,946,920.29 : x
  2. Step 2: Convert to fraction form
    128,684,291.42/177,585,584.01 = 69,946,920.29/x
  3. Step 3: Cross multiply
    128,684,291.42x = 177,585,584.01 × 69,946,920.29
  4. Step 4: Simplify right side
    128,684,291.42x = 12,421,564,689,400,570
  5. Step 5: Solve for x
    x = 12,421,564,689,400,570/128,684,291.42
  6. Step 6: Final answer
    x = 96,527,435.88

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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.