Home / 288,825,854.49-398,579,270.54-156,666,691.42

Finding the Fourth Proportional to 288,825,854.49, 398,579,270.54 and 156,666,691.42

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Solution

The fourth proportional to 288,825,854.49, 398,579,270.54 and 156,666,691.42 is: 216,199,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,825,854.49 : 398,579,270.54 = 156,666,691.42 : x
  2. Step 2: Convert to fraction form
    288,825,854.49/398,579,270.54 = 156,666,691.42/x
  3. Step 3: Cross multiply
    288,825,854.49x = 398,579,270.54 × 156,666,691.42
  4. Step 4: Simplify right side
    288,825,854.49x = 62,444,095,582,319,096
  5. Step 5: Solve for x
    x = 62,444,095,582,319,096/288,825,854.49
  6. Step 6: Final answer
    x = 216,199,812.49

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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.