Home / 12,282,655.20-18,395,989.20-7,243,807.20

Finding the Fourth Proportional to 12,282,655.20, 18,395,989.20 and 7,243,807.20

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Solution

The fourth proportional to 12,282,655.20, 18,395,989.20 and 7,243,807.20 is: 10,849,201.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282,655.20 : 18,395,989.20 = 7,243,807.20 : x
  2. Step 2: Convert to fraction form
    12,282,655.20/18,395,989.20 = 7,243,807.20/x
  3. Step 3: Cross multiply
    12,282,655.20x = 18,395,989.20 × 7,243,807.20
  4. Step 4: Simplify right side
    12,282,655.20x = 133,256,999,018,082.23
  5. Step 5: Solve for x
    x = 133,256,999,018,082.23/12,282,655.20
  6. Step 6: Final answer
    x = 10,849,201.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.