Home / 839,815,237.20-1,259,722,855.80-724,929,502.80

Finding the Fourth Proportional to 839,815,237.20, 1,259,722,855.80 and 724,929,502.80

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Solution

The fourth proportional to 839,815,237.20, 1,259,722,855.80 and 724,929,502.80 is: 1,087,394,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,237.20 : 1,259,722,855.80 = 724,929,502.80 : x
  2. Step 2: Convert to fraction form
    839,815,237.20/1,259,722,855.80 = 724,929,502.80/x
  3. Step 3: Cross multiply
    839,815,237.20x = 1,259,722,855.80 × 724,929,502.80
  4. Step 4: Simplify right side
    839,815,237.20x = 913,210,263,520,889,984
  5. Step 5: Solve for x
    x = 913,210,263,520,889,984/839,815,237.20
  6. Step 6: Final answer
    x = 1,087,394,254.20

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Double scale
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1.5x scale

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.