Home / 517,626,689.36-776,825,657.01-379,808,428.55

Finding the Fourth Proportional to 517,626,689.36, 776,825,657.01 and 379,808,428.55

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Solution

The fourth proportional to 517,626,689.36, 776,825,657.01 and 379,808,428.55 is: 569,995,593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,626,689.36 : 776,825,657.01 = 379,808,428.55 : x
  2. Step 2: Convert to fraction form
    517,626,689.36/776,825,657.01 = 379,808,428.55/x
  3. Step 3: Cross multiply
    517,626,689.36x = 776,825,657.01 × 379,808,428.55
  4. Step 4: Simplify right side
    517,626,689.36x = 295,044,932,042,405,248
  5. Step 5: Solve for x
    x = 295,044,932,042,405,248/517,626,689.36
  6. Step 6: Final answer
    x = 569,995,593.56

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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.