Home / 284,006,178,065.38-391,940,845,713.60-157,276,631,441.38

Finding the Fourth Proportional to 284,006,178,065.38, 391,940,845,713.60 and 157,276,631,441.38

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Solution

The fourth proportional to 284,006,178,065.38, 391,940,845,713.60 and 157,276,631,441.38 is: 217,048,573,936.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,006,178,065.38 : 391,940,845,713.60 = 157,276,631,441.38 : x
  2. Step 2: Convert to fraction form
    284,006,178,065.38/391,940,845,713.60 = 157,276,631,441.38/x
  3. Step 3: Cross multiply
    284,006,178,065.38x = 391,940,845,713.60 × 157,276,631,441.38
  4. Step 4: Simplify right side
    284,006,178,065.38x = 61,643,135,938,120,648,753,152
  5. Step 5: Solve for x
    x = 61,643,135,938,120,648,753,152/284,006,178,065.38
  6. Step 6: Final answer
    x = 217,048,573,936.06

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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.