Home / 354,759,615.20-532,139,422.80-257,257,906.40

Finding the Fourth Proportional to 354,759,615.20, 532,139,422.80 and 257,257,906.40

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Solution

The fourth proportional to 354,759,615.20, 532,139,422.80 and 257,257,906.40 is: 385,886,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,759,615.20 : 532,139,422.80 = 257,257,906.40 : x
  2. Step 2: Convert to fraction form
    354,759,615.20/532,139,422.80 = 257,257,906.40/x
  3. Step 3: Cross multiply
    354,759,615.20x = 532,139,422.80 × 257,257,906.40
  4. Step 4: Simplify right side
    354,759,615.20x = 136,897,073,822,432,432
  5. Step 5: Solve for x
    x = 136,897,073,822,432,432/354,759,615.20
  6. Step 6: Final answer
    x = 385,886,859.60

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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.