Home / 15,009,698.51-20,713,401.65-8,134,180.57

Finding the Fourth Proportional to 15,009,698.51, 20,713,401.65 and 8,134,180.57

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Solution

The fourth proportional to 15,009,698.51, 20,713,401.65 and 8,134,180.57 is: 11,225,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,698.51 : 20,713,401.65 = 8,134,180.57 : x
  2. Step 2: Convert to fraction form
    15,009,698.51/20,713,401.65 = 8,134,180.57/x
  3. Step 3: Cross multiply
    15,009,698.51x = 20,713,401.65 × 8,134,180.57
  4. Step 4: Simplify right side
    15,009,698.51x = 168,486,549,240,035.94
  5. Step 5: Solve for x
    x = 168,486,549,240,035.94/15,009,698.51
  6. Step 6: Final answer
    x = 11,225,178.78

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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.