Home / 74,572,574.72-111,864,898.56-20,719,892.48

Finding the Fourth Proportional to 74,572,574.72, 111,864,898.56 and 20,719,892.48

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Solution

The fourth proportional to 74,572,574.72, 111,864,898.56 and 20,719,892.48 is: 31,081,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572,574.72 : 111,864,898.56 = 20,719,892.48 : x
  2. Step 2: Convert to fraction form
    74,572,574.72/111,864,898.56 = 20,719,892.48/x
  3. Step 3: Cross multiply
    74,572,574.72x = 111,864,898.56 × 20,719,892.48
  4. Step 4: Simplify right side
    74,572,574.72x = 2,317,828,670,449,307
  5. Step 5: Solve for x
    x = 2,317,828,670,449,307/74,572,574.72
  6. Step 6: Final answer
    x = 31,081,515.95

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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.