Home / 657,930,989.20-986,896,483.80-528,790,826.20

Finding the Fourth Proportional to 657,930,989.20, 986,896,483.80 and 528,790,826.20

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Solution

The fourth proportional to 657,930,989.20, 986,896,483.80 and 528,790,826.20 is: 793,186,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,930,989.20 : 986,896,483.80 = 528,790,826.20 : x
  2. Step 2: Convert to fraction form
    657,930,989.20/986,896,483.80 = 528,790,826.20/x
  3. Step 3: Cross multiply
    657,930,989.20x = 986,896,483.80 × 528,790,826.20
  4. Step 4: Simplify right side
    657,930,989.20x = 521,861,807,042,476,864
  5. Step 5: Solve for x
    x = 521,861,807,042,476,864/657,930,989.20
  6. Step 6: Final answer
    x = 793,186,239.30

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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.