Home / 12,898,778.26-17,799,780.21-7,018,436.68

Finding the Fourth Proportional to 12,898,778.26, 17,799,780.21 and 7,018,436.68

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Solution

The fourth proportional to 12,898,778.26, 17,799,780.21 and 7,018,436.68 is: 9,685,152.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898,778.26 : 17,799,780.21 = 7,018,436.68 : x
  2. Step 2: Convert to fraction form
    12,898,778.26/17,799,780.21 = 7,018,436.68/x
  3. Step 3: Cross multiply
    12,898,778.26x = 17,799,780.21 × 7,018,436.68
  4. Step 4: Simplify right side
    12,898,778.26x = 124,926,630,321,802.11
  5. Step 5: Solve for x
    x = 124,926,630,321,802.11/12,898,778.26
  6. Step 6: Final answer
    x = 9,685,152.18

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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.