Home / 81,333,215.48-112,211,779.35-51,981,729.05

Finding the Fourth Proportional to 81,333,215.48, 112,211,779.35 and 51,981,729.05

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Solution

The fourth proportional to 81,333,215.48, 112,211,779.35 and 51,981,729.05 is: 71,716,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333,215.48 : 112,211,779.35 = 51,981,729.05 : x
  2. Step 2: Convert to fraction form
    81,333,215.48/112,211,779.35 = 51,981,729.05/x
  3. Step 3: Cross multiply
    81,333,215.48x = 112,211,779.35 × 51,981,729.05
  4. Step 4: Simplify right side
    81,333,215.48x = 5,832,962,310,390,084
  5. Step 5: Solve for x
    x = 5,832,962,310,390,084/81,333,215.48
  6. Step 6: Final answer
    x = 71,716,853.64

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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.