Home / 865,692,464.70-1,299,350,511.45-457,041,891.90

Finding the Fourth Proportional to 865,692,464.70, 1,299,350,511.45 and 457,041,891.90

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Solution

The fourth proportional to 865,692,464.70, 1,299,350,511.45 and 457,041,891.90 is: 685,991,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,692,464.70 : 1,299,350,511.45 = 457,041,891.90 : x
  2. Step 2: Convert to fraction form
    865,692,464.70/1,299,350,511.45 = 457,041,891.90/x
  3. Step 3: Cross multiply
    865,692,464.70x = 1,299,350,511.45 × 457,041,891.90
  4. Step 4: Simplify right side
    865,692,464.70x = 593,857,615,994,340,608
  5. Step 5: Solve for x
    x = 593,857,615,994,340,608/865,692,464.70
  6. Step 6: Final answer
    x = 685,991,434.85

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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.