Home / 1,309,481,718.35-1,806,815,011.70-752,457,148.61

Finding the Fourth Proportional to 1,309,481,718.35, 1,806,815,011.70 and 752,457,148.61

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Solution

The fourth proportional to 1,309,481,718.35, 1,806,815,011.70 and 752,457,148.61 is: 1,038,235,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,481,718.35 : 1,806,815,011.70 = 752,457,148.61 : x
  2. Step 2: Convert to fraction form
    1,309,481,718.35/1,806,815,011.70 = 752,457,148.61/x
  3. Step 3: Cross multiply
    1,309,481,718.35x = 1,806,815,011.70 × 752,457,148.61
  4. Step 4: Simplify right side
    1,309,481,718.35x = 1,359,550,871,756,729,344
  5. Step 5: Solve for x
    x = 1,359,550,871,756,729,344/1,309,481,718.35
  6. Step 6: Final answer
    x = 1,038,235,855.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.