Home / 15,317,468.40-21,137,832.72-8,348,208.96

Finding the Fourth Proportional to 15,317,468.40, 21,137,832.72 and 8,348,208.96

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Solution

The fourth proportional to 15,317,468.40, 21,137,832.72 and 8,348,208.96 is: 11,520,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317,468.40 : 21,137,832.72 = 8,348,208.96 : x
  2. Step 2: Convert to fraction form
    15,317,468.40/21,137,832.72 = 8,348,208.96/x
  3. Step 3: Cross multiply
    15,317,468.40x = 21,137,832.72 × 8,348,208.96
  4. Step 4: Simplify right side
    15,317,468.40x = 176,463,044,508,085.16
  5. Step 5: Solve for x
    x = 176,463,044,508,085.16/15,317,468.40
  6. Step 6: Final answer
    x = 11,520,379.21

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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.