Home / 21,051,495.81-29,051,152.61-11,393,703.81

Finding the Fourth Proportional to 21,051,495.81, 29,051,152.61 and 11,393,703.81

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Solution

The fourth proportional to 21,051,495.81, 29,051,152.61 and 11,393,703.81 is: 15,723,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051,495.81 : 29,051,152.61 = 11,393,703.81 : x
  2. Step 2: Convert to fraction form
    21,051,495.81/29,051,152.61 = 11,393,703.81/x
  3. Step 3: Cross multiply
    21,051,495.81x = 29,051,152.61 × 11,393,703.81
  4. Step 4: Simplify right side
    21,051,495.81x = 331,000,228,120,479.94
  5. Step 5: Solve for x
    x = 331,000,228,120,479.94/21,051,495.81
  6. Step 6: Final answer
    x = 15,723,359.10

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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.