Home / 710,207,998.40-1,065,311,997.60-515,204,580.80

Finding the Fourth Proportional to 710,207,998.40, 1,065,311,997.60 and 515,204,580.80

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Solution

The fourth proportional to 710,207,998.40, 1,065,311,997.60 and 515,204,580.80 is: 772,806,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,207,998.40 : 1,065,311,997.60 = 515,204,580.80 : x
  2. Step 2: Convert to fraction form
    710,207,998.40/1,065,311,997.60 = 515,204,580.80/x
  3. Step 3: Cross multiply
    710,207,998.40x = 1,065,311,997.60 × 515,204,580.80
  4. Step 4: Simplify right side
    710,207,998.40x = 548,853,621,144,718,656
  5. Step 5: Solve for x
    x = 548,853,621,144,718,656/710,207,998.40
  6. Step 6: Final answer
    x = 772,806,871.20

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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.