Home / 8,124,459.57-11,205,216.81-7,142,298.66

Finding the Fourth Proportional to 8,124,459.57, 11,205,216.81 and 7,142,298.66

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Solution

The fourth proportional to 8,124,459.57, 11,205,216.81 and 7,142,298.66 is: 9,850,625.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124,459.57 : 11,205,216.81 = 7,142,298.66 : x
  2. Step 2: Convert to fraction form
    8,124,459.57/11,205,216.81 = 7,142,298.66/x
  3. Step 3: Cross multiply
    8,124,459.57x = 11,205,216.81 × 7,142,298.66
  4. Step 4: Simplify right side
    8,124,459.57x = 80,031,005,007,072.48
  5. Step 5: Solve for x
    x = 80,031,005,007,072.48/8,124,459.57
  6. Step 6: Final answer
    x = 9,850,625.06

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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.