Home / 12,591,387,867.90-18,887,081,801.85-5,226,607,631.10

Finding the Fourth Proportional to 12,591,387,867.90, 18,887,081,801.85 and 5,226,607,631.10

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Solution

The fourth proportional to 12,591,387,867.90, 18,887,081,801.85 and 5,226,607,631.10 is: 7,839,911,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,387,867.90 : 18,887,081,801.85 = 5,226,607,631.10 : x
  2. Step 2: Convert to fraction form
    12,591,387,867.90/18,887,081,801.85 = 5,226,607,631.10/x
  3. Step 3: Cross multiply
    12,591,387,867.90x = 18,887,081,801.85 × 5,226,607,631.10
  4. Step 4: Simplify right side
    12,591,387,867.90x = 98,715,365,874,759,139,328
  5. Step 5: Solve for x
    x = 98,715,365,874,759,139,328/12,591,387,867.90
  6. Step 6: Final answer
    x = 7,839,911,446.65

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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.