Home / 39,578,174,074.61-54,617,915,417.00-21,513,690,286.44

Finding the Fourth Proportional to 39,578,174,074.61, 54,617,915,417.00 and 21,513,690,286.44

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Solution

The fourth proportional to 39,578,174,074.61, 54,617,915,417.00 and 21,513,690,286.44 is: 29,688,911,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,578,174,074.61 : 54,617,915,417.00 = 21,513,690,286.44 : x
  2. Step 2: Convert to fraction form
    39,578,174,074.61/54,617,915,417.00 = 21,513,690,286.44/x
  3. Step 3: Cross multiply
    39,578,174,074.61x = 54,617,915,417.00 × 21,513,690,286.44
  4. Step 4: Simplify right side
    39,578,174,074.61x = 1,175,032,916,372,499,857,408
  5. Step 5: Solve for x
    x = 1,175,032,916,372,499,857,408/39,578,174,074.61
  6. Step 6: Final answer
    x = 29,688,911,725.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.