Home / 19,805,652.93-29,708,238.81-5,428,708.59

Finding the Fourth Proportional to 19,805,652.93, 29,708,238.81 and 5,428,708.59

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Solution

The fourth proportional to 19,805,652.93, 29,708,238.81 and 5,428,708.59 is: 8,142,996.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805,652.93 : 29,708,238.81 = 5,428,708.59 : x
  2. Step 2: Convert to fraction form
    19,805,652.93/29,708,238.81 = 5,428,708.59/x
  3. Step 3: Cross multiply
    19,805,652.93x = 29,708,238.81 × 5,428,708.59
  4. Step 4: Simplify right side
    19,805,652.93x = 161,277,371,221,618.38
  5. Step 5: Solve for x
    x = 161,277,371,221,618.38/19,805,652.93
  6. Step 6: Final answer
    x = 8,142,996.94

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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.