Home / 21,265,499.48-31,896,706.86-8,309,214.68

Finding the Fourth Proportional to 21,265,499.48, 31,896,706.86 and 8,309,214.68

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Solution

The fourth proportional to 21,265,499.48, 31,896,706.86 and 8,309,214.68 is: 12,463,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,499.48 : 31,896,706.86 = 8,309,214.68 : x
  2. Step 2: Convert to fraction form
    21,265,499.48/31,896,706.86 = 8,309,214.68/x
  3. Step 3: Cross multiply
    21,265,499.48x = 31,896,706.86 × 8,309,214.68
  4. Step 4: Simplify right side
    21,265,499.48x = 265,036,584,884,768.69
  5. Step 5: Solve for x
    x = 265,036,584,884,768.69/21,265,499.48
  6. Step 6: Final answer
    x = 12,463,219.36

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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.