Home / 12,989,623.20-19,485,663.60-3,534,007.20

Finding the Fourth Proportional to 12,989,623.20, 19,485,663.60 and 3,534,007.20

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Solution

The fourth proportional to 12,989,623.20, 19,485,663.60 and 3,534,007.20 is: 5,301,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,623.20 : 19,485,663.60 = 3,534,007.20 : x
  2. Step 2: Convert to fraction form
    12,989,623.20/19,485,663.60 = 3,534,007.20/x
  3. Step 3: Cross multiply
    12,989,623.20x = 19,485,663.60 × 3,534,007.20
  4. Step 4: Simplify right side
    12,989,623.20x = 68,862,475,459,177.93
  5. Step 5: Solve for x
    x = 68,862,475,459,177.93/12,989,623.20
  6. Step 6: Final answer
    x = 5,301,345.11

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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.