Home / 13,709,766.32-18,919,071.59-7,514,680.58

Finding the Fourth Proportional to 13,709,766.32, 18,919,071.59 and 7,514,680.58

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Solution

The fourth proportional to 13,709,766.32, 18,919,071.59 and 7,514,680.58 is: 10,370,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709,766.32 : 18,919,071.59 = 7,514,680.58 : x
  2. Step 2: Convert to fraction form
    13,709,766.32/18,919,071.59 = 7,514,680.58/x
  3. Step 3: Cross multiply
    13,709,766.32x = 18,919,071.59 × 7,514,680.58
  4. Step 4: Simplify right side
    13,709,766.32x = 142,170,779,736,833.97
  5. Step 5: Solve for x
    x = 142,170,779,736,833.97/13,709,766.32
  6. Step 6: Final answer
    x = 10,370,036.69

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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.