Home / 657,930,966.20-986,896,449.30-528,790,803.20

Finding the Fourth Proportional to 657,930,966.20, 986,896,449.30 and 528,790,803.20

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Solution

The fourth proportional to 657,930,966.20, 986,896,449.30 and 528,790,803.20 is: 793,186,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,930,966.20 : 986,896,449.30 = 528,790,803.20 : x
  2. Step 2: Convert to fraction form
    657,930,966.20/986,896,449.30 = 528,790,803.20/x
  3. Step 3: Cross multiply
    657,930,966.20x = 986,896,449.30 × 528,790,803.20
  4. Step 4: Simplify right side
    657,930,966.20x = 521,861,766,100,575,040
  5. Step 5: Solve for x
    x = 521,861,766,100,575,040/657,930,966.20
  6. Step 6: Final answer
    x = 793,186,204.80

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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.