Home / 805,128,758.10-1,206,984,549.15-545,502,114.90

Finding the Fourth Proportional to 805,128,758.10, 1,206,984,549.15 and 545,502,114.90

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Solution

The fourth proportional to 805,128,758.10, 1,206,984,549.15 and 545,502,114.90 is: 817,773,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,128,758.10 : 1,206,984,549.15 = 545,502,114.90 : x
  2. Step 2: Convert to fraction form
    805,128,758.10/1,206,984,549.15 = 545,502,114.90/x
  3. Step 3: Cross multiply
    805,128,758.10x = 1,206,984,549.15 × 545,502,114.90
  4. Step 4: Simplify right side
    805,128,758.10x = 658,412,624,212,947,968
  5. Step 5: Solve for x
    x = 658,412,624,212,947,968/805,128,758.10
  6. Step 6: Final answer
    x = 817,773,079.88

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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.