Home / 513,217,077.80-769,825,616.70-329,551,068.20

Finding the Fourth Proportional to 513,217,077.80, 769,825,616.70 and 329,551,068.20

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Solution

The fourth proportional to 513,217,077.80, 769,825,616.70 and 329,551,068.20 is: 494,326,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,217,077.80 : 769,825,616.70 = 329,551,068.20 : x
  2. Step 2: Convert to fraction form
    513,217,077.80/769,825,616.70 = 329,551,068.20/x
  3. Step 3: Cross multiply
    513,217,077.80x = 769,825,616.70 × 329,551,068.20
  4. Step 4: Simplify right side
    513,217,077.80x = 253,696,854,311,208,768
  5. Step 5: Solve for x
    x = 253,696,854,311,208,768/513,217,077.80
  6. Step 6: Final answer
    x = 494,326,602.30

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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.