Home / 14,772,290.72-20,340,633.64-13,386,619.31

Finding the Fourth Proportional to 14,772,290.72, 20,340,633.64 and 13,386,619.31

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Solution

The fourth proportional to 14,772,290.72, 20,340,633.64 and 13,386,619.31 is: 18,432,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772,290.72 : 20,340,633.64 = 13,386,619.31 : x
  2. Step 2: Convert to fraction form
    14,772,290.72/20,340,633.64 = 13,386,619.31/x
  3. Step 3: Cross multiply
    14,772,290.72x = 20,340,633.64 × 13,386,619.31
  4. Step 4: Simplify right side
    14,772,290.72x = 272,292,318,927,689.84
  5. Step 5: Solve for x
    x = 272,292,318,927,689.84/14,772,290.72
  6. Step 6: Final answer
    x = 18,432,640.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.