Home / 256,608,729.60-385,023,686.40-148,995,340.80

Finding the Fourth Proportional to 256,608,729.60, 385,023,686.40 and 148,995,340.80

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Solution

The fourth proportional to 256,608,729.60, 385,023,686.40 and 148,995,340.80 is: 223,557,224.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,729.60 : 385,023,686.40 = 148,995,340.80 : x
  2. Step 2: Convert to fraction form
    256,608,729.60/385,023,686.40 = 148,995,340.80/x
  3. Step 3: Cross multiply
    256,608,729.60x = 385,023,686.40 × 148,995,340.80
  4. Step 4: Simplify right side
    256,608,729.60x = 57,366,735,371,240,328
  5. Step 5: Solve for x
    x = 57,366,735,371,240,328/256,608,729.60
  6. Step 6: Final answer
    x = 223,557,224.50

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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.