Home / 7,115,901.92-9,819,931.64-3,852,716.20

Finding the Fourth Proportional to 7,115,901.92, 9,819,931.64 and 3,852,716.20

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Solution

The fourth proportional to 7,115,901.92, 9,819,931.64 and 3,852,716.20 is: 5,316,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115,901.92 : 9,819,931.64 = 3,852,716.20 : x
  2. Step 2: Convert to fraction form
    7,115,901.92/9,819,931.64 = 3,852,716.20/x
  3. Step 3: Cross multiply
    7,115,901.92x = 9,819,931.64 × 3,852,716.20
  4. Step 4: Simplify right side
    7,115,901.92x = 37,833,409,712,320.57
  5. Step 5: Solve for x
    x = 37,833,409,712,320.57/7,115,901.92
  6. Step 6: Final answer
    x = 5,316,741.31

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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.