Home / 19,431,156.70-29,128,072.65-15,110,811.10

Finding the Fourth Proportional to 19,431,156.70, 29,128,072.65 and 15,110,811.10

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Solution

The fourth proportional to 19,431,156.70, 29,128,072.65 and 15,110,811.10 is: 22,651,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431,156.70 : 29,128,072.65 = 15,110,811.10 : x
  2. Step 2: Convert to fraction form
    19,431,156.70/29,128,072.65 = 15,110,811.10/x
  3. Step 3: Cross multiply
    19,431,156.70x = 29,128,072.65 × 15,110,811.10
  4. Step 4: Simplify right side
    19,431,156.70x = 440,148,803,521,226.38
  5. Step 5: Solve for x
    x = 440,148,803,521,226.38/19,431,156.70
  6. Step 6: Final answer
    x = 22,651,703.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.