Home / 12,259,127.40-16,917,595.74-7,105,478.28

Finding the Fourth Proportional to 12,259,127.40, 16,917,595.74 and 7,105,478.28

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Solution

The fourth proportional to 12,259,127.40, 16,917,595.74 and 7,105,478.28 is: 9,805,559.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259,127.40 : 16,917,595.74 = 7,105,478.28 : x
  2. Step 2: Convert to fraction form
    12,259,127.40/16,917,595.74 = 7,105,478.28/x
  3. Step 3: Cross multiply
    12,259,127.40x = 16,917,595.74 × 7,105,478.28
  4. Step 4: Simplify right side
    12,259,127.40x = 120,207,609,080,390.52
  5. Step 5: Solve for x
    x = 120,207,609,080,390.52/12,259,127.40
  6. Step 6: Final answer
    x = 9,805,559.98

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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.