Home / 13,538,987.80-18,663,071.71-8,302,284.91

Finding the Fourth Proportional to 13,538,987.80, 18,663,071.71 and 8,302,284.91

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Solution

The fourth proportional to 13,538,987.80, 18,663,071.71 and 8,302,284.91 is: 11,444,440.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,987.80 : 18,663,071.71 = 8,302,284.91 : x
  2. Step 2: Convert to fraction form
    13,538,987.80/18,663,071.71 = 8,302,284.91/x
  3. Step 3: Cross multiply
    13,538,987.80x = 18,663,071.71 × 8,302,284.91
  4. Step 4: Simplify right side
    13,538,987.80x = 154,946,138,650,320.81
  5. Step 5: Solve for x
    x = 154,946,138,650,320.81/13,538,987.80
  6. Step 6: Final answer
    x = 11,444,440.38

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1.5x scale

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.