Home / 12,913,127.61-17,820,922.01-7,111,907.81

Finding the Fourth Proportional to 12,913,127.61, 17,820,922.01 and 7,111,907.81

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Solution

The fourth proportional to 12,913,127.61, 17,820,922.01 and 7,111,907.81 is: 9,814,876.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,127.61 : 17,820,922.01 = 7,111,907.81 : x
  2. Step 2: Convert to fraction form
    12,913,127.61/17,820,922.01 = 7,111,907.81/x
  3. Step 3: Cross multiply
    12,913,127.61x = 17,820,922.01 × 7,111,907.81
  4. Step 4: Simplify right side
    12,913,127.61x = 126,740,754,299,655.73
  5. Step 5: Solve for x
    x = 126,740,754,299,655.73/12,913,127.61
  6. Step 6: Final answer
    x = 9,814,876.62

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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.