Home / 21,030,221.28-31,547,850.24-6,455,231.66

Finding the Fourth Proportional to 21,030,221.28, 31,547,850.24 and 6,455,231.66

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Solution

The fourth proportional to 21,030,221.28, 31,547,850.24 and 6,455,231.66 is: 9,683,620.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,221.28 : 31,547,850.24 = 6,455,231.66 : x
  2. Step 2: Convert to fraction form
    21,030,221.28/31,547,850.24 = 6,455,231.66/x
  3. Step 3: Cross multiply
    21,030,221.28x = 31,547,850.24 × 6,455,231.66
  4. Step 4: Simplify right side
    21,030,221.28x = 203,648,681,674,186.59
  5. Step 5: Solve for x
    x = 203,648,681,674,186.59/21,030,221.28
  6. Step 6: Final answer
    x = 9,683,620.49

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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.