Home / 834,858,047.20-1,252,287,070.80-289,654,693.60

Finding the Fourth Proportional to 834,858,047.20, 1,252,287,070.80 and 289,654,693.60

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Solution

The fourth proportional to 834,858,047.20, 1,252,287,070.80 and 289,654,693.60 is: 434,482,040.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,858,047.20 : 1,252,287,070.80 = 289,654,693.60 : x
  2. Step 2: Convert to fraction form
    834,858,047.20/1,252,287,070.80 = 289,654,693.60/x
  3. Step 3: Cross multiply
    834,858,047.20x = 1,252,287,070.80 × 289,654,693.60
  4. Step 4: Simplify right side
    834,858,047.20x = 362,730,827,791,815,552
  5. Step 5: Solve for x
    x = 362,730,827,791,815,552/834,858,047.20
  6. Step 6: Final answer
    x = 434,482,040.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.