Home / 354,759,611.20-532,139,416.80-257,257,902.40

Finding the Fourth Proportional to 354,759,611.20, 532,139,416.80 and 257,257,902.40

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Solution

The fourth proportional to 354,759,611.20, 532,139,416.80 and 257,257,902.40 is: 385,886,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,759,611.20 : 532,139,416.80 = 257,257,902.40 : x
  2. Step 2: Convert to fraction form
    354,759,611.20/532,139,416.80 = 257,257,902.40/x
  3. Step 3: Cross multiply
    354,759,611.20x = 532,139,416.80 × 257,257,902.40
  4. Step 4: Simplify right side
    354,759,611.20x = 136,897,070,150,327,328
  5. Step 5: Solve for x
    x = 136,897,070,150,327,328/354,759,611.20
  6. Step 6: Final answer
    x = 385,886,853.60

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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.