Home / 20,718,673.90-31,072,707.90-6,142,184.79

Finding the Fourth Proportional to 20,718,673.90, 31,072,707.90 and 6,142,184.79

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Solution

The fourth proportional to 20,718,673.90, 31,072,707.90 and 6,142,184.79 is: 9,211,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,673.90 : 31,072,707.90 = 6,142,184.79 : x
  2. Step 2: Convert to fraction form
    20,718,673.90/31,072,707.90 = 6,142,184.79/x
  3. Step 3: Cross multiply
    20,718,673.90x = 31,072,707.90 × 6,142,184.79
  4. Step 4: Simplify right side
    20,718,673.90x = 190,854,313,923,032.22
  5. Step 5: Solve for x
    x = 190,854,313,923,032.22/20,718,673.90
  6. Step 6: Final answer
    x = 9,211,705.10

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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.