Home / 13,585,215.50-18,748,086.88-7,785,118.16

Finding the Fourth Proportional to 13,585,215.50, 18,748,086.88 and 7,785,118.16

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Solution

The fourth proportional to 13,585,215.50, 18,748,086.88 and 7,785,118.16 is: 10,743,743.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585,215.50 : 18,748,086.88 = 7,785,118.16 : x
  2. Step 2: Convert to fraction form
    13,585,215.50/18,748,086.88 = 7,785,118.16/x
  3. Step 3: Cross multiply
    13,585,215.50x = 18,748,086.88 × 7,785,118.16
  4. Step 4: Simplify right side
    13,585,215.50x = 145,956,071,634,745.75
  5. Step 5: Solve for x
    x = 145,956,071,634,745.75/13,585,215.50
  6. Step 6: Final answer
    x = 10,743,743.57

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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.