Home / 215,047,418.81-322,572,995.01-69,480,995.76

Finding the Fourth Proportional to 215,047,418.81, 322,572,995.01 and 69,480,995.76

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Solution

The fourth proportional to 215,047,418.81, 322,572,995.01 and 69,480,995.76 is: 104,222,096.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,047,418.81 : 322,572,995.01 = 69,480,995.76 : x
  2. Step 2: Convert to fraction form
    215,047,418.81/322,572,995.01 = 69,480,995.76/x
  3. Step 3: Cross multiply
    215,047,418.81x = 322,572,995.01 × 69,480,995.76
  4. Step 4: Simplify right side
    215,047,418.81x = 22,412,692,897,631,216
  5. Step 5: Solve for x
    x = 22,412,692,897,631,216/215,047,418.81
  6. Step 6: Final answer
    x = 104,222,096.79

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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.