Home / 9,368,678.61-12,928,703.40-5,238,717.75

Finding the Fourth Proportional to 9,368,678.61, 12,928,703.40 and 5,238,717.75

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Solution

The fourth proportional to 9,368,678.61, 12,928,703.40 and 5,238,717.75 is: 7,229,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368,678.61 : 12,928,703.40 = 5,238,717.75 : x
  2. Step 2: Convert to fraction form
    9,368,678.61/12,928,703.40 = 5,238,717.75/x
  3. Step 3: Cross multiply
    9,368,678.61x = 12,928,703.40 × 5,238,717.75
  4. Step 4: Simplify right side
    9,368,678.61x = 67,729,827,986,065.35
  5. Step 5: Solve for x
    x = 67,729,827,986,065.35/9,368,678.61
  6. Step 6: Final answer
    x = 7,229,389.63

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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.