Home / 28,597,857,495.78-42,906,439,980.03-12,659,995,492.14

Finding the Fourth Proportional to 28,597,857,495.78, 42,906,439,980.03 and 12,659,995,492.14

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Solution

The fourth proportional to 28,597,857,495.78, 42,906,439,980.03 and 12,659,995,492.14 is: 18,994,266,854.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,597,857,495.78 : 42,906,439,980.03 = 12,659,995,492.14 : x
  2. Step 2: Convert to fraction form
    28,597,857,495.78/42,906,439,980.03 = 12,659,995,492.14/x
  3. Step 3: Cross multiply
    28,597,857,495.78x = 42,906,439,980.03 × 12,659,995,492.14
  4. Step 4: Simplify right side
    28,597,857,495.78x = 543,195,336,730,955,218,944
  5. Step 5: Solve for x
    x = 543,195,336,730,955,218,944/28,597,857,495.78
  6. Step 6: Final answer
    x = 18,994,266,854.12

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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.