Home / 21,289,614.16-29,379,678.32-11,500,057.84

Finding the Fourth Proportional to 21,289,614.16, 29,379,678.32 and 11,500,057.84

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Solution

The fourth proportional to 21,289,614.16, 29,379,678.32 and 11,500,057.84 is: 15,870,085.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,614.16 : 29,379,678.32 = 11,500,057.84 : x
  2. Step 2: Convert to fraction form
    21,289,614.16/29,379,678.32 = 11,500,057.84/x
  3. Step 3: Cross multiply
    21,289,614.16x = 29,379,678.32 × 11,500,057.84
  4. Step 4: Simplify right side
    21,289,614.16x = 337,868,000,000,594
  5. Step 5: Solve for x
    x = 337,868,000,000,594/21,289,614.16
  6. Step 6: Final answer
    x = 15,870,085.64

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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.