Home / 15,762,811.12-21,749,985.40-9,145,882.66

Finding the Fourth Proportional to 15,762,811.12, 21,749,985.40 and 9,145,882.66

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Solution

The fourth proportional to 15,762,811.12, 21,749,985.40 and 9,145,882.66 is: 12,619,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762,811.12 : 21,749,985.40 = 9,145,882.66 : x
  2. Step 2: Convert to fraction form
    15,762,811.12/21,749,985.40 = 9,145,882.66/x
  3. Step 3: Cross multiply
    15,762,811.12x = 21,749,985.40 × 9,145,882.66
  4. Step 4: Simplify right side
    15,762,811.12x = 198,922,814,170,633.81
  5. Step 5: Solve for x
    x = 198,922,814,170,633.81/15,762,811.12
  6. Step 6: Final answer
    x = 12,619,754.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.