Home / 873,690,709.50-1,310,540,963.38-291,423,356.58

Finding the Fourth Proportional to 873,690,709.50, 1,310,540,963.38 and 291,423,356.58

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Solution

The fourth proportional to 873,690,709.50, 1,310,540,963.38 and 291,423,356.58 is: 437,136,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690,709.50 : 1,310,540,963.38 = 291,423,356.58 : x
  2. Step 2: Convert to fraction form
    873,690,709.50/1,310,540,963.38 = 291,423,356.58/x
  3. Step 3: Cross multiply
    873,690,709.50x = 1,310,540,963.38 × 291,423,356.58
  4. Step 4: Simplify right side
    873,690,709.50x = 381,922,246,483,786,496
  5. Step 5: Solve for x
    x = 381,922,246,483,786,496/873,690,709.50
  6. Step 6: Final answer
    x = 437,136,669.00

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Double scale
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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.