Home / 256,085,801.28-353,398,423.02-140,192,297.28

Finding the Fourth Proportional to 256,085,801.28, 353,398,423.02 and 140,192,297.28

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Solution

The fourth proportional to 256,085,801.28, 353,398,423.02 and 140,192,297.28 is: 193,465,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,085,801.28 : 353,398,423.02 = 140,192,297.28 : x
  2. Step 2: Convert to fraction form
    256,085,801.28/353,398,423.02 = 140,192,297.28/x
  3. Step 3: Cross multiply
    256,085,801.28x = 353,398,423.02 × 140,192,297.28
  4. Step 4: Simplify right side
    256,085,801.28x = 49,543,736,778,303,032
  5. Step 5: Solve for x
    x = 49,543,736,778,303,032/256,085,801.28
  6. Step 6: Final answer
    x = 193,465,379.69

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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.