Home / 402,160,691.76-554,977,955.04-223,539,896.72

Finding the Fourth Proportional to 402,160,691.76, 554,977,955.04 and 223,539,896.72

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Solution

The fourth proportional to 402,160,691.76, 554,977,955.04 and 223,539,896.72 is: 308,482,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,160,691.76 : 554,977,955.04 = 223,539,896.72 : x
  2. Step 2: Convert to fraction form
    402,160,691.76/554,977,955.04 = 223,539,896.72/x
  3. Step 3: Cross multiply
    402,160,691.76x = 554,977,955.04 × 223,539,896.72
  4. Step 4: Simplify right side
    402,160,691.76x = 124,059,714,751,518,400
  5. Step 5: Solve for x
    x = 124,059,714,751,518,400/402,160,691.76
  6. Step 6: Final answer
    x = 308,482,945.48

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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.