Home / 57,017,126,156.15-78,683,712,013.22-30,945,491,881.71

Finding the Fourth Proportional to 57,017,126,156.15, 78,683,712,013.22 and 30,945,491,881.71

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Solution

The fourth proportional to 57,017,126,156.15, 78,683,712,013.22 and 30,945,491,881.71 is: 42,704,821,085.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,017,126,156.15 : 78,683,712,013.22 = 30,945,491,881.71 : x
  2. Step 2: Convert to fraction form
    57,017,126,156.15/78,683,712,013.22 = 30,945,491,881.71/x
  3. Step 3: Cross multiply
    57,017,126,156.15x = 78,683,712,013.22 × 30,945,491,881.71
  4. Step 4: Simplify right side
    57,017,126,156.15x = 2,434,906,171,327,752,175,616
  5. Step 5: Solve for x
    x = 2,434,906,171,327,752,175,616/57,017,126,156.15
  6. Step 6: Final answer
    x = 42,704,821,085.85

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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.