Home / 448,506,239.40-672,759,359.10-120,981,119.40

Finding the Fourth Proportional to 448,506,239.40, 672,759,359.10 and 120,981,119.40

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Solution

The fourth proportional to 448,506,239.40, 672,759,359.10 and 120,981,119.40 is: 181,471,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,506,239.40 : 672,759,359.10 = 120,981,119.40 : x
  2. Step 2: Convert to fraction form
    448,506,239.40/672,759,359.10 = 120,981,119.40/x
  3. Step 3: Cross multiply
    448,506,239.40x = 672,759,359.10 × 120,981,119.40
  4. Step 4: Simplify right side
    448,506,239.40x = 81,391,180,350,744,576
  5. Step 5: Solve for x
    x = 81,391,180,350,744,576/448,506,239.40
  6. Step 6: Final answer
    x = 181,471,679.10

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Similar ratio
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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.