Home / 21,860,007.20-32,790,010.80-21,230,151.20

Finding the Fourth Proportional to 21,860,007.20, 32,790,010.80 and 21,230,151.20

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Solution

The fourth proportional to 21,860,007.20, 32,790,010.80 and 21,230,151.20 is: 31,845,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,007.20 : 32,790,010.80 = 21,230,151.20 : x
  2. Step 2: Convert to fraction form
    21,860,007.20/32,790,010.80 = 21,230,151.20/x
  3. Step 3: Cross multiply
    21,860,007.20x = 32,790,010.80 × 21,230,151.20
  4. Step 4: Simplify right side
    21,860,007.20x = 696,136,887,133,633
  5. Step 5: Solve for x
    x = 696,136,887,133,633/21,860,007.20
  6. Step 6: Final answer
    x = 31,845,226.80

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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.