Home / 12,942,264.70-17,860,699.02-7,141,420.11

Finding the Fourth Proportional to 12,942,264.70, 17,860,699.02 and 7,141,420.11

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Solution

The fourth proportional to 12,942,264.70, 17,860,699.02 and 7,141,420.11 is: 9,855,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,264.70 : 17,860,699.02 = 7,141,420.11 : x
  2. Step 2: Convert to fraction form
    12,942,264.70/17,860,699.02 = 7,141,420.11/x
  3. Step 3: Cross multiply
    12,942,264.70x = 17,860,699.02 × 7,141,420.11
  4. Step 4: Simplify right side
    12,942,264.70x = 127,550,755,160,085.30
  5. Step 5: Solve for x
    x = 127,550,755,160,085.30/12,942,264.70
  6. Step 6: Final answer
    x = 9,855,365.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.