Home / 15,136,216.89-20,880,714.45-9,906,922.80

Finding the Fourth Proportional to 15,136,216.89, 20,880,714.45 and 9,906,922.80

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Solution

The fourth proportional to 15,136,216.89, 20,880,714.45 and 9,906,922.80 is: 13,666,798.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136,216.89 : 20,880,714.45 = 9,906,922.80 : x
  2. Step 2: Convert to fraction form
    15,136,216.89/20,880,714.45 = 9,906,922.80/x
  3. Step 3: Cross multiply
    15,136,216.89x = 20,880,714.45 × 9,906,922.80
  4. Step 4: Simplify right side
    15,136,216.89x = 206,863,626,064,994.47
  5. Step 5: Solve for x
    x = 206,863,626,064,994.47/15,136,216.89
  6. Step 6: Final answer
    x = 13,666,798.49

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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.