Home / 657,930,987.20-986,896,480.80-528,790,824.20

Finding the Fourth Proportional to 657,930,987.20, 986,896,480.80 and 528,790,824.20

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Solution

The fourth proportional to 657,930,987.20, 986,896,480.80 and 528,790,824.20 is: 793,186,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,930,987.20 : 986,896,480.80 = 528,790,824.20 : x
  2. Step 2: Convert to fraction form
    657,930,987.20/986,896,480.80 = 528,790,824.20/x
  3. Step 3: Cross multiply
    657,930,987.20x = 986,896,480.80 × 528,790,824.20
  4. Step 4: Simplify right side
    657,930,987.20x = 521,861,803,482,311,424
  5. Step 5: Solve for x
    x = 521,861,803,482,311,424/657,930,987.20
  6. Step 6: Final answer
    x = 793,186,236.30

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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.