Home / 56,881,821.97-78,496,913.06-30,776,339.80

Finding the Fourth Proportional to 56,881,821.97, 78,496,913.06 and 30,776,339.80

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Solution

The fourth proportional to 56,881,821.97, 78,496,913.06 and 30,776,339.80 is: 42,471,348.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881,821.97 : 78,496,913.06 = 30,776,339.80 : x
  2. Step 2: Convert to fraction form
    56,881,821.97/78,496,913.06 = 30,776,339.80/x
  3. Step 3: Cross multiply
    56,881,821.97x = 78,496,913.06 × 30,776,339.80
  4. Step 4: Simplify right side
    56,881,821.97x = 2,415,847,669,585,618
  5. Step 5: Solve for x
    x = 2,415,847,669,585,618/56,881,821.97
  6. Step 6: Final answer
    x = 42,471,348.24

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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.