Home / 257,720,685.18-355,658,826.21-140,250,966.54

Finding the Fourth Proportional to 257,720,685.18, 355,658,826.21 and 140,250,966.54

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Solution

The fourth proportional to 257,720,685.18, 355,658,826.21 and 140,250,966.54 is: 193,548,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,720,685.18 : 355,658,826.21 = 140,250,966.54 : x
  2. Step 2: Convert to fraction form
    257,720,685.18/355,658,826.21 = 140,250,966.54/x
  3. Step 3: Cross multiply
    257,720,685.18x = 355,658,826.21 × 140,250,966.54
  4. Step 4: Simplify right side
    257,720,685.18x = 49,881,494,134,434,376
  5. Step 5: Solve for x
    x = 49,881,494,134,434,376/257,720,685.18
  6. Step 6: Final answer
    x = 193,548,663.35

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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.