Home / 1,455,165,787.60-2,182,767,343.80-485,817,403.60

Finding the Fourth Proportional to 1,455,165,787.60, 2,182,767,343.80 and 485,817,403.60

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Solution

The fourth proportional to 1,455,165,787.60, 2,182,767,343.80 and 485,817,403.60 is: 728,732,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,165,787.60 : 2,182,767,343.80 = 485,817,403.60 : x
  2. Step 2: Convert to fraction form
    1,455,165,787.60/2,182,767,343.80 = 485,817,403.60/x
  3. Step 3: Cross multiply
    1,455,165,787.60x = 2,182,767,343.80 × 485,817,403.60
  4. Step 4: Simplify right side
    1,455,165,787.60x = 1,060,426,363,627,784,704
  5. Step 5: Solve for x
    x = 1,060,426,363,627,784,704/1,455,165,787.60
  6. Step 6: Final answer
    x = 728,732,335.97

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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.