Home / 399,108,727.20-598,775,065.20-194,643,472.80

Finding the Fourth Proportional to 399,108,727.20, 598,775,065.20 and 194,643,472.80

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Solution

The fourth proportional to 399,108,727.20, 598,775,065.20 and 194,643,472.80 is: 292,019,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,108,727.20 : 598,775,065.20 = 194,643,472.80 : x
  2. Step 2: Convert to fraction form
    399,108,727.20/598,775,065.20 = 194,643,472.80/x
  3. Step 3: Cross multiply
    399,108,727.20x = 598,775,065.20 × 194,643,472.80
  4. Step 4: Simplify right side
    399,108,727.20x = 116,547,658,116,574,448
  5. Step 5: Solve for x
    x = 116,547,658,116,574,448/399,108,727.20
  6. Step 6: Final answer
    x = 292,019,818.59

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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.