Home / 15,009,698.39-20,713,401.48-8,134,180.45

Finding the Fourth Proportional to 15,009,698.39, 20,713,401.48 and 8,134,180.45

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Solution

The fourth proportional to 15,009,698.39, 20,713,401.48 and 8,134,180.45 is: 11,225,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,698.39 : 20,713,401.48 = 8,134,180.45 : x
  2. Step 2: Convert to fraction form
    15,009,698.39/20,713,401.48 = 8,134,180.45/x
  3. Step 3: Cross multiply
    15,009,698.39x = 20,713,401.48 × 8,134,180.45
  4. Step 4: Simplify right side
    15,009,698.39x = 168,486,545,428,012
  5. Step 5: Solve for x
    x = 168,486,545,428,012/15,009,698.39
  6. Step 6: Final answer
    x = 11,225,178.62

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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.