Home / 250,140,091.71-345,193,359.28-138,638,131.13

Finding the Fourth Proportional to 250,140,091.71, 345,193,359.28 and 138,638,131.13

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Solution

The fourth proportional to 250,140,091.71, 345,193,359.28 and 138,638,131.13 is: 191,320,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,140,091.71 : 345,193,359.28 = 138,638,131.13 : x
  2. Step 2: Convert to fraction form
    250,140,091.71/345,193,359.28 = 138,638,131.13/x
  3. Step 3: Cross multiply
    250,140,091.71x = 345,193,359.28 × 138,638,131.13
  4. Step 4: Simplify right side
    250,140,091.71x = 47,856,962,209,095,496
  5. Step 5: Solve for x
    x = 47,856,962,209,095,496/250,140,091.71
  6. Step 6: Final answer
    x = 191,320,639.10

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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.