Home / 21,297,166.47-29,439,737.40-18,996,857.10

Finding the Fourth Proportional to 21,297,166.47, 29,439,737.40 and 18,996,857.10

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Solution

The fourth proportional to 21,297,166.47, 29,439,737.40 and 18,996,857.10 is: 26,259,948.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,297,166.47 : 29,439,737.40 = 18,996,857.10 : x
  2. Step 2: Convert to fraction form
    21,297,166.47/29,439,737.40 = 18,996,857.10/x
  3. Step 3: Cross multiply
    21,297,166.47x = 29,439,737.40 × 18,996,857.10
  4. Step 4: Simplify right side
    21,297,166.47x = 559,262,484,449,325.56
  5. Step 5: Solve for x
    x = 559,262,484,449,325.56/21,297,166.47
  6. Step 6: Final answer
    x = 26,259,948.02

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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.