Home / 873,690,691.86-1,310,540,937.03-291,423,338.94

Finding the Fourth Proportional to 873,690,691.86, 1,310,540,937.03 and 291,423,338.94

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Solution

The fourth proportional to 873,690,691.86, 1,310,540,937.03 and 291,423,338.94 is: 437,136,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690,691.86 : 1,310,540,937.03 = 291,423,338.94 : x
  2. Step 2: Convert to fraction form
    873,690,691.86/1,310,540,937.03 = 291,423,338.94/x
  3. Step 3: Cross multiply
    873,690,691.86x = 1,310,540,937.03 × 291,423,338.94
  4. Step 4: Simplify right side
    873,690,691.86x = 381,922,215,686,838,848
  5. Step 5: Solve for x
    x = 381,922,215,686,838,848/873,690,691.86
  6. Step 6: Final answer
    x = 437,136,642.57

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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.