Home / 399,417,999.80-598,455,153.30-341,639,209.40

Finding the Fourth Proportional to 399,417,999.80, 598,455,153.30 and 341,639,209.40

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Solution

The fourth proportional to 399,417,999.80, 598,455,153.30 and 341,639,209.40 is: 511,884,155.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,417,999.80 : 598,455,153.30 = 341,639,209.40 : x
  2. Step 2: Convert to fraction form
    399,417,999.80/598,455,153.30 = 341,639,209.40/x
  3. Step 3: Cross multiply
    399,417,999.80x = 598,455,153.30 × 341,639,209.40
  4. Step 4: Simplify right side
    399,417,999.80x = 204,455,745,434,767,776
  5. Step 5: Solve for x
    x = 204,455,745,434,767,776/399,417,999.80
  6. Step 6: Final answer
    x = 511,884,155.29

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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.