Home / 13,283,991.20-19,925,986.80-12,087,264.80

Finding the Fourth Proportional to 13,283,991.20, 19,925,986.80 and 12,087,264.80

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Solution

The fourth proportional to 13,283,991.20, 19,925,986.80 and 12,087,264.80 is: 18,130,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283,991.20 : 19,925,986.80 = 12,087,264.80 : x
  2. Step 2: Convert to fraction form
    13,283,991.20/19,925,986.80 = 12,087,264.80/x
  3. Step 3: Cross multiply
    13,283,991.20x = 19,925,986.80 × 12,087,264.80
  4. Step 4: Simplify right side
    13,283,991.20x = 240,850,678,852,904.66
  5. Step 5: Solve for x
    x = 240,850,678,852,904.66/13,283,991.20
  6. Step 6: Final answer
    x = 18,130,897.20

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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.