Home / 261,352,681.38-360,655,651.56-142,272,798

Finding the Fourth Proportional to 261,352,681.38, 360,655,651.56 and 142,272,798

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Solution

The fourth proportional to 261,352,681.38, 360,655,651.56 and 142,272,798 is: 196,330,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,352,681.38 : 360,655,651.56 = 142,272,798 : x
  2. Step 2: Convert to fraction form
    261,352,681.38/360,655,651.56 = 142,272,798/x
  3. Step 3: Cross multiply
    261,352,681.38x = 360,655,651.56 × 142,272,798
  4. Step 4: Simplify right side
    261,352,681.38x = 51,311,488,661,954,264
  5. Step 5: Solve for x
    x = 51,311,488,661,954,264/261,352,681.38
  6. Step 6: Final answer
    x = 196,330,446.62

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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.