Home / 873,169,908.30-1,309,754,862.45-436,537,982.70

Finding the Fourth Proportional to 873,169,908.30, 1,309,754,862.45 and 436,537,982.70

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Solution

The fourth proportional to 873,169,908.30, 1,309,754,862.45 and 436,537,982.70 is: 654,806,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,169,908.30 : 1,309,754,862.45 = 436,537,982.70 : x
  2. Step 2: Convert to fraction form
    873,169,908.30/1,309,754,862.45 = 436,537,982.70/x
  3. Step 3: Cross multiply
    873,169,908.30x = 1,309,754,862.45 × 436,537,982.70
  4. Step 4: Simplify right side
    873,169,908.30x = 571,757,745,485,438,976
  5. Step 5: Solve for x
    x = 571,757,745,485,438,976/873,169,908.30
  6. Step 6: Final answer
    x = 654,806,974.05

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1.5x scale

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.