Home / 312,689,984,288.72-431,488,497,006.27-175,486,312,036.70

Finding the Fourth Proportional to 312,689,984,288.72, 431,488,497,006.27 and 175,486,312,036.70

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Solution

The fourth proportional to 312,689,984,288.72, 431,488,497,006.27 and 175,486,312,036.70 is: 242,157,820,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,689,984,288.72 : 431,488,497,006.27 = 175,486,312,036.70 : x
  2. Step 2: Convert to fraction form
    312,689,984,288.72/431,488,497,006.27 = 175,486,312,036.70/x
  3. Step 3: Cross multiply
    312,689,984,288.72x = 431,488,497,006.27 × 175,486,312,036.70
  4. Step 4: Simplify right side
    312,689,984,288.72x = 75,720,325,025,889,003,765,760
  5. Step 5: Solve for x
    x = 75,720,325,025,889,003,765,760/312,689,984,288.72
  6. Step 6: Final answer
    x = 242,157,820,302.85

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1.5x scale

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.