Home / 518,612,214.09-715,690,406.93-283,657,850.54

Finding the Fourth Proportional to 518,612,214.09, 715,690,406.93 and 283,657,850.54

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Solution

The fourth proportional to 518,612,214.09, 715,690,406.93 and 283,657,850.54 is: 391,450,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,612,214.09 : 715,690,406.93 = 283,657,850.54 : x
  2. Step 2: Convert to fraction form
    518,612,214.09/715,690,406.93 = 283,657,850.54/x
  3. Step 3: Cross multiply
    518,612,214.09x = 715,690,406.93 × 283,657,850.54
  4. Step 4: Simplify right side
    518,612,214.09x = 203,011,202,481,861,728
  5. Step 5: Solve for x
    x = 203,011,202,481,861,728/518,612,214.09
  6. Step 6: Final answer
    x = 391,450,870.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.