Home / 726,861,320.70-1,090,291,981.05-436,623,675.90

Finding the Fourth Proportional to 726,861,320.70, 1,090,291,981.05 and 436,623,675.90

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Solution

The fourth proportional to 726,861,320.70, 1,090,291,981.05 and 436,623,675.90 is: 654,935,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,861,320.70 : 1,090,291,981.05 = 436,623,675.90 : x
  2. Step 2: Convert to fraction form
    726,861,320.70/1,090,291,981.05 = 436,623,675.90/x
  3. Step 3: Cross multiply
    726,861,320.70x = 1,090,291,981.05 × 436,623,675.90
  4. Step 4: Simplify right side
    726,861,320.70x = 476,047,292,570,344,064
  5. Step 5: Solve for x
    x = 476,047,292,570,344,064/726,861,320.70
  6. Step 6: Final answer
    x = 654,935,513.85

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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.