Home / 13,621,648.39-20,432,547.81-3,386,508.17

Finding the Fourth Proportional to 13,621,648.39, 20,432,547.81 and 3,386,508.17

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Solution

The fourth proportional to 13,621,648.39, 20,432,547.81 and 3,386,508.17 is: 5,079,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,648.39 : 20,432,547.81 = 3,386,508.17 : x
  2. Step 2: Convert to fraction form
    13,621,648.39/20,432,547.81 = 3,386,508.17/x
  3. Step 3: Cross multiply
    13,621,648.39x = 20,432,547.81 × 3,386,508.17
  4. Step 4: Simplify right side
    13,621,648.39x = 69,194,989,990,317.87
  5. Step 5: Solve for x
    x = 69,194,989,990,317.87/13,621,648.39
  6. Step 6: Final answer
    x = 5,079,780.95

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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.