Home / 12,942,321.40-17,860,499.22-7,141,317.40

Finding the Fourth Proportional to 12,942,321.40, 17,860,499.22 and 7,141,317.40

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Solution

The fourth proportional to 12,942,321.40, 17,860,499.22 and 7,141,317.40 is: 9,855,070.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,321.40 : 17,860,499.22 = 7,141,317.40 : x
  2. Step 2: Convert to fraction form
    12,942,321.40/17,860,499.22 = 7,141,317.40/x
  3. Step 3: Cross multiply
    12,942,321.40x = 17,860,499.22 × 7,141,317.40
  4. Step 4: Simplify right side
    12,942,321.40x = 127,547,493,852,472.42
  5. Step 5: Solve for x
    x = 127,547,493,852,472.42/12,942,321.40
  6. Step 6: Final answer
    x = 9,855,070.81

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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.