Home / 256,891,515.50-354,510,476.34-139,416,815.36

Finding the Fourth Proportional to 256,891,515.50, 354,510,476.34 and 139,416,815.36

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Solution

The fourth proportional to 256,891,515.50, 354,510,476.34 and 139,416,815.36 is: 192,395,305.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,891,515.50 : 354,510,476.34 = 139,416,815.36 : x
  2. Step 2: Convert to fraction form
    256,891,515.50/354,510,476.34 = 139,416,815.36/x
  3. Step 3: Cross multiply
    256,891,515.50x = 354,510,476.34 × 139,416,815.36
  4. Step 4: Simplify right side
    256,891,515.50x = 49,424,721,623,079,432
  5. Step 5: Solve for x
    x = 49,424,721,623,079,432/256,891,515.50
  6. Step 6: Final answer
    x = 192,395,305.57

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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.