Home / 9,419,972.13-12,999,875.54-5,290,730.92

Finding the Fourth Proportional to 9,419,972.13, 12,999,875.54 and 5,290,730.92

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Solution

The fourth proportional to 9,419,972.13, 12,999,875.54 and 5,290,730.92 is: 7,301,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419,972.13 : 12,999,875.54 = 5,290,730.92 : x
  2. Step 2: Convert to fraction form
    9,419,972.13/12,999,875.54 = 5,290,730.92/x
  3. Step 3: Cross multiply
    9,419,972.13x = 12,999,875.54 × 5,290,730.92
  4. Step 4: Simplify right side
    9,419,972.13x = 68,778,843,475,629.69
  5. Step 5: Solve for x
    x = 68,778,843,475,629.69/9,419,972.13
  6. Step 6: Final answer
    x = 7,301,385.03

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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.