Home / 57,086,995.50-78,780,094.83-30,981,506.58

Finding the Fourth Proportional to 57,086,995.50, 78,780,094.83 and 30,981,506.58

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Solution

The fourth proportional to 57,086,995.50, 78,780,094.83 and 30,981,506.58 is: 42,754,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086,995.50 : 78,780,094.83 = 30,981,506.58 : x
  2. Step 2: Convert to fraction form
    57,086,995.50/78,780,094.83 = 30,981,506.58/x
  3. Step 3: Cross multiply
    57,086,995.50x = 78,780,094.83 × 30,981,506.58
  4. Step 4: Simplify right side
    57,086,995.50x = 2,440,726,026,348,669
  5. Step 5: Solve for x
    x = 2,440,726,026,348,669/57,086,995.50
  6. Step 6: Final answer
    x = 42,754,501.35

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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.