Home / 1,947,980,489.46-2,921,929,796.62-474,128,521.15

Finding the Fourth Proportional to 1,947,980,489.46, 2,921,929,796.62 and 474,128,521.15

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Solution

The fourth proportional to 1,947,980,489.46, 2,921,929,796.62 and 474,128,521.15 is: 711,182,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,980,489.46 : 2,921,929,796.62 = 474,128,521.15 : x
  2. Step 2: Convert to fraction form
    1,947,980,489.46/2,921,929,796.62 = 474,128,521.15/x
  3. Step 3: Cross multiply
    1,947,980,489.46x = 2,921,929,796.62 × 474,128,521.15
  4. Step 4: Simplify right side
    1,947,980,489.46x = 1,385,370,253,360,723,968
  5. Step 5: Solve for x
    x = 1,385,370,253,360,723,968/1,947,980,489.46
  6. Step 6: Final answer
    x = 711,182,817.72

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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.