Home / 514,959,815.80-772,439,723.70-458,839,646.20

Finding the Fourth Proportional to 514,959,815.80, 772,439,723.70 and 458,839,646.20

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Solution

The fourth proportional to 514,959,815.80, 772,439,723.70 and 458,839,646.20 is: 688,259,469.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,959,815.80 : 772,439,723.70 = 458,839,646.20 : x
  2. Step 2: Convert to fraction form
    514,959,815.80/772,439,723.70 = 458,839,646.20/x
  3. Step 3: Cross multiply
    514,959,815.80x = 772,439,723.70 × 458,839,646.20
  4. Step 4: Simplify right side
    514,959,815.80x = 354,425,969,533,333,760
  5. Step 5: Solve for x
    x = 354,425,969,533,333,760/514,959,815.80
  6. Step 6: Final answer
    x = 688,259,469.30

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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.