Home / 657,934,249.20-986,901,373.80-528,794,086.20

Finding the Fourth Proportional to 657,934,249.20, 986,901,373.80 and 528,794,086.20

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Solution

The fourth proportional to 657,934,249.20, 986,901,373.80 and 528,794,086.20 is: 793,191,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,934,249.20 : 986,901,373.80 = 528,794,086.20 : x
  2. Step 2: Convert to fraction form
    657,934,249.20/986,901,373.80 = 528,794,086.20/x
  3. Step 3: Cross multiply
    657,934,249.20x = 986,901,373.80 × 528,794,086.20
  4. Step 4: Simplify right side
    657,934,249.20x = 521,867,610,128,095,616
  5. Step 5: Solve for x
    x = 521,867,610,128,095,616/657,934,249.20
  6. Step 6: Final answer
    x = 793,191,129.30

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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.