Home / 257,486,622.79-355,288,461.94-151,661,108.61

Finding the Fourth Proportional to 257,486,622.79, 355,288,461.94 and 151,661,108.61

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Solution

The fourth proportional to 257,486,622.79, 355,288,461.94 and 151,661,108.61 is: 209,266,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,486,622.79 : 355,288,461.94 = 151,661,108.61 : x
  2. Step 2: Convert to fraction form
    257,486,622.79/355,288,461.94 = 151,661,108.61/x
  3. Step 3: Cross multiply
    257,486,622.79x = 355,288,461.94 × 151,661,108.61
  4. Step 4: Simplify right side
    257,486,622.79x = 53,883,442,013,783,040
  5. Step 5: Solve for x
    x = 53,883,442,013,783,040/257,486,622.79
  6. Step 6: Final answer
    x = 209,266,956.98

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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.