Home / 57,170,876.40-78,896,308.95-31,065,393.69

Finding the Fourth Proportional to 57,170,876.40, 78,896,308.95 and 31,065,393.69

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Solution

The fourth proportional to 57,170,876.40, 78,896,308.95 and 31,065,393.69 is: 42,870,514.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,170,876.40 : 78,896,308.95 = 31,065,393.69 : x
  2. Step 2: Convert to fraction form
    57,170,876.40/78,896,308.95 = 31,065,393.69/x
  3. Step 3: Cross multiply
    57,170,876.40x = 78,896,308.95 × 31,065,393.69
  4. Step 4: Simplify right side
    57,170,876.40x = 2,450,944,898,219,620.50
  5. Step 5: Solve for x
    x = 2,450,944,898,219,620.50/57,170,876.40
  6. Step 6: Final answer
    x = 42,870,514.72

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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.