Home / 13,116,670.80-19,675,006.20-7,719,781.20

Finding the Fourth Proportional to 13,116,670.80, 19,675,006.20 and 7,719,781.20

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Solution

The fourth proportional to 13,116,670.80, 19,675,006.20 and 7,719,781.20 is: 11,579,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116,670.80 : 19,675,006.20 = 7,719,781.20 : x
  2. Step 2: Convert to fraction form
    13,116,670.80/19,675,006.20 = 7,719,781.20/x
  3. Step 3: Cross multiply
    13,116,670.80x = 19,675,006.20 × 7,719,781.20
  4. Step 4: Simplify right side
    13,116,670.80x = 151,886,742,972,643.44
  5. Step 5: Solve for x
    x = 151,886,742,972,643.44/13,116,670.80
  6. Step 6: Final answer
    x = 11,579,671.80

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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.