Home / 10,455,622.80-15,676,241.40-5,328,128.40

Finding the Fourth Proportional to 10,455,622.80, 15,676,241.40 and 5,328,128.40

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Solution

The fourth proportional to 10,455,622.80, 15,676,241.40 and 5,328,128.40 is: 7,988,527.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455,622.80 : 15,676,241.40 = 5,328,128.40 : x
  2. Step 2: Convert to fraction form
    10,455,622.80/15,676,241.40 = 5,328,128.40/x
  3. Step 3: Cross multiply
    10,455,622.80x = 15,676,241.40 × 5,328,128.40
  4. Step 4: Simplify right side
    10,455,622.80x = 83,525,027,008,595.77
  5. Step 5: Solve for x
    x = 83,525,027,008,595.77/10,455,622.80
  6. Step 6: Final answer
    x = 7,988,527.19

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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.