Home / 1,309,481,710.47-1,806,815,000.84-752,457,140.73

Finding the Fourth Proportional to 1,309,481,710.47, 1,806,815,000.84 and 752,457,140.73

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Solution

The fourth proportional to 1,309,481,710.47, 1,806,815,000.84 and 752,457,140.73 is: 1,038,235,844.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,481,710.47 : 1,806,815,000.84 = 752,457,140.73 : x
  2. Step 2: Convert to fraction form
    1,309,481,710.47/1,806,815,000.84 = 752,457,140.73/x
  3. Step 3: Cross multiply
    1,309,481,710.47x = 1,806,815,000.84 × 752,457,140.73
  4. Step 4: Simplify right side
    1,309,481,710.47x = 1,359,550,849,356,376,832
  5. Step 5: Solve for x
    x = 1,359,550,849,356,376,832/1,309,481,710.47
  6. Step 6: Final answer
    x = 1,038,235,844.37

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Double scale
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1.5x scale

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.