Home / 15,036,239.61-20,750,030.84-8,160,721.67

Finding the Fourth Proportional to 15,036,239.61, 20,750,030.84 and 8,160,721.67

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Solution

The fourth proportional to 15,036,239.61, 20,750,030.84 and 8,160,721.67 is: 11,261,806.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036,239.61 : 20,750,030.84 = 8,160,721.67 : x
  2. Step 2: Convert to fraction form
    15,036,239.61/20,750,030.84 = 8,160,721.67/x
  3. Step 3: Cross multiply
    15,036,239.61x = 20,750,030.84 × 8,160,721.67
  4. Step 4: Simplify right side
    15,036,239.61x = 169,335,226,401,433.19
  5. Step 5: Solve for x
    x = 169,335,226,401,433.19/15,036,239.61
  6. Step 6: Final answer
    x = 11,261,806.86

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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.