Home / 126,670,805.40-189,782,259.30-112,338,082.20

Finding the Fourth Proportional to 126,670,805.40, 189,782,259.30 and 112,338,082.20

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Solution

The fourth proportional to 126,670,805.40, 189,782,259.30 and 112,338,082.20 is: 168,308,514.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,670,805.40 : 189,782,259.30 = 112,338,082.20 : x
  2. Step 2: Convert to fraction form
    126,670,805.40/189,782,259.30 = 112,338,082.20/x
  3. Step 3: Cross multiply
    126,670,805.40x = 189,782,259.30 × 112,338,082.20
  4. Step 4: Simplify right side
    126,670,805.40x = 21,319,775,045,345,116
  5. Step 5: Solve for x
    x = 21,319,775,045,345,116/126,670,805.40
  6. Step 6: Final answer
    x = 168,308,514.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.