Home / 12,820,503.40-17,691,593.92-7,018,162.76

Finding the Fourth Proportional to 12,820,503.40, 17,691,593.92 and 7,018,162.76

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Solution

The fourth proportional to 12,820,503.40, 17,691,593.92 and 7,018,162.76 is: 9,684,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,503.40 : 17,691,593.92 = 7,018,162.76 : x
  2. Step 2: Convert to fraction form
    12,820,503.40/17,691,593.92 = 7,018,162.76/x
  3. Step 3: Cross multiply
    12,820,503.40x = 17,691,593.92 × 7,018,162.76
  4. Step 4: Simplify right side
    12,820,503.40x = 124,162,485,579,295.59
  5. Step 5: Solve for x
    x = 124,162,485,579,295.59/12,820,503.40
  6. Step 6: Final answer
    x = 9,684,681.00

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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.