Home / 28,031,699.28-38,674,686.96-15,639,783.60

Finding the Fourth Proportional to 28,031,699.28, 38,674,686.96 and 15,639,783.60

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Solution

The fourth proportional to 28,031,699.28, 38,674,686.96 and 15,639,783.60 is: 21,577,847.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031,699.28 : 38,674,686.96 = 15,639,783.60 : x
  2. Step 2: Convert to fraction form
    28,031,699.28/38,674,686.96 = 15,639,783.60/x
  3. Step 3: Cross multiply
    28,031,699.28x = 38,674,686.96 × 15,639,783.60
  4. Step 4: Simplify right side
    28,031,699.28x = 604,863,734,852,141.88
  5. Step 5: Solve for x
    x = 604,863,734,852,141.88/28,031,699.28
  6. Step 6: Final answer
    x = 21,577,847.59

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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.