Home / 13,306,978.78-19,962,658-4,084,719.72

Finding the Fourth Proportional to 13,306,978.78, 19,962,658 and 4,084,719.72

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Solution

The fourth proportional to 13,306,978.78, 19,962,658 and 4,084,719.72 is: 6,127,751.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306,978.78 : 19,962,658 = 4,084,719.72 : x
  2. Step 2: Convert to fraction form
    13,306,978.78/19,962,658 = 4,084,719.72/x
  3. Step 3: Cross multiply
    13,306,978.78x = 19,962,658 × 4,084,719.72
  4. Step 4: Simplify right side
    13,306,978.78x = 81,541,862,796,215.77
  5. Step 5: Solve for x
    x = 81,541,862,796,215.77/13,306,978.78
  6. Step 6: Final answer
    x = 6,127,751.77

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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.