Home / 873,690,748.47-1,310,541,021.72-291,423,395.43

Finding the Fourth Proportional to 873,690,748.47, 1,310,541,021.72 and 291,423,395.43

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Solution

The fourth proportional to 873,690,748.47, 1,310,541,021.72 and 291,423,395.43 is: 437,136,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690,748.47 : 1,310,541,021.72 = 291,423,395.43 : x
  2. Step 2: Convert to fraction form
    873,690,748.47/1,310,541,021.72 = 291,423,395.43/x
  3. Step 3: Cross multiply
    873,690,748.47x = 1,310,541,021.72 × 291,423,395.43
  4. Step 4: Simplify right side
    873,690,748.47x = 381,922,314,399,943,808
  5. Step 5: Solve for x
    x = 381,922,314,399,943,808/873,690,748.47
  6. Step 6: Final answer
    x = 437,136,727.23

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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.