Home / 824,499,209.80-1,236,748,814.70-742,869,872.20

Finding the Fourth Proportional to 824,499,209.80, 1,236,748,814.70 and 742,869,872.20

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Solution

The fourth proportional to 824,499,209.80, 1,236,748,814.70 and 742,869,872.20 is: 1,114,304,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,499,209.80 : 1,236,748,814.70 = 742,869,872.20 : x
  2. Step 2: Convert to fraction form
    824,499,209.80/1,236,748,814.70 = 742,869,872.20/x
  3. Step 3: Cross multiply
    824,499,209.80x = 1,236,748,814.70 × 742,869,872.20
  4. Step 4: Simplify right side
    824,499,209.80x = 918,743,433,919,690,624
  5. Step 5: Solve for x
    x = 918,743,433,919,690,624/824,499,209.80
  6. Step 6: Final answer
    x = 1,114,304,808.30

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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.