Home / 8,215,480.69-12,308,606.40-7,005,123.81

Finding the Fourth Proportional to 8,215,480.69, 12,308,606.40 and 7,005,123.81

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Solution

The fourth proportional to 8,215,480.69, 12,308,606.40 and 7,005,123.81 is: 10,495,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215,480.69 : 12,308,606.40 = 7,005,123.81 : x
  2. Step 2: Convert to fraction form
    8,215,480.69/12,308,606.40 = 7,005,123.81/x
  3. Step 3: Cross multiply
    8,215,480.69x = 12,308,606.40 × 7,005,123.81
  4. Step 4: Simplify right side
    8,215,480.69x = 86,223,311,786,827.59
  5. Step 5: Solve for x
    x = 86,223,311,786,827.59/8,215,480.69
  6. Step 6: Final answer
    x = 10,495,224.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.