Home / 974,991,979.82-1,345,491,512.39-528,955,329.20

Finding the Fourth Proportional to 974,991,979.82, 1,345,491,512.39 and 528,955,329.20

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Solution

The fourth proportional to 974,991,979.82, 1,345,491,512.39 and 528,955,329.20 is: 729,959,754.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,991,979.82 : 1,345,491,512.39 = 528,955,329.20 : x
  2. Step 2: Convert to fraction form
    974,991,979.82/1,345,491,512.39 = 528,955,329.20/x
  3. Step 3: Cross multiply
    974,991,979.82x = 1,345,491,512.39 × 528,955,329.20
  4. Step 4: Simplify right side
    974,991,979.82x = 711,704,905,872,058,368
  5. Step 5: Solve for x
    x = 711,704,905,872,058,368/974,991,979.82
  6. Step 6: Final answer
    x = 729,959,754.13

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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.