Home / 13,285,966.68-18,335,988.36-8,132,733.72

Finding the Fourth Proportional to 13,285,966.68, 18,335,988.36 and 8,132,733.72

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Solution

The fourth proportional to 13,285,966.68, 18,335,988.36 and 8,132,733.72 is: 11,224,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285,966.68 : 18,335,988.36 = 8,132,733.72 : x
  2. Step 2: Convert to fraction form
    13,285,966.68/18,335,988.36 = 8,132,733.72/x
  3. Step 3: Cross multiply
    13,285,966.68x = 18,335,988.36 × 8,132,733.72
  4. Step 4: Simplify right side
    13,285,966.68x = 149,121,710,824,899.50
  5. Step 5: Solve for x
    x = 149,121,710,824,899.50/13,285,966.68
  6. Step 6: Final answer
    x = 11,224,001.57

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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.