Home / 7,128,476.10-10,669,094.55-6,561,605.70

Finding the Fourth Proportional to 7,128,476.10, 10,669,094.55 and 6,561,605.70

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Solution

The fourth proportional to 7,128,476.10, 10,669,094.55 and 6,561,605.70 is: 9,820,667.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,476.10 : 10,669,094.55 = 6,561,605.70 : x
  2. Step 2: Convert to fraction form
    7,128,476.10/10,669,094.55 = 6,561,605.70/x
  3. Step 3: Cross multiply
    7,128,476.10x = 10,669,094.55 × 6,561,605.70
  4. Step 4: Simplify right side
    7,128,476.10x = 70,006,391,613,118.95
  5. Step 5: Solve for x
    x = 70,006,391,613,118.95/7,128,476.10
  6. Step 6: Final answer
    x = 9,820,667.23

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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.