Home / 829,761,318.80-1,244,641,978.20-646,095,309.20

Finding the Fourth Proportional to 829,761,318.80, 1,244,641,978.20 and 646,095,309.20

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Solution

The fourth proportional to 829,761,318.80, 1,244,641,978.20 and 646,095,309.20 is: 969,142,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,761,318.80 : 1,244,641,978.20 = 646,095,309.20 : x
  2. Step 2: Convert to fraction form
    829,761,318.80/1,244,641,978.20 = 646,095,309.20/x
  3. Step 3: Cross multiply
    829,761,318.80x = 1,244,641,978.20 × 646,095,309.20
  4. Step 4: Simplify right side
    829,761,318.80x = 804,157,343,748,428,800
  5. Step 5: Solve for x
    x = 804,157,343,748,428,800/829,761,318.80
  6. Step 6: Final answer
    x = 969,142,963.80

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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.