Home / 354,759,619.20-532,139,428.80-257,257,910.40

Finding the Fourth Proportional to 354,759,619.20, 532,139,428.80 and 257,257,910.40

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Solution

The fourth proportional to 354,759,619.20, 532,139,428.80 and 257,257,910.40 is: 385,886,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,759,619.20 : 532,139,428.80 = 257,257,910.40 : x
  2. Step 2: Convert to fraction form
    354,759,619.20/532,139,428.80 = 257,257,910.40/x
  3. Step 3: Cross multiply
    354,759,619.20x = 532,139,428.80 × 257,257,910.40
  4. Step 4: Simplify right side
    354,759,619.20x = 136,897,077,494,537,584
  5. Step 5: Solve for x
    x = 136,897,077,494,537,584/354,759,619.20
  6. Step 6: Final answer
    x = 385,886,865.60

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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.