Home / 12,679,051.16-17,497,089.12-7,172,307.98

Finding the Fourth Proportional to 12,679,051.16, 17,497,089.12 and 7,172,307.98

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Solution

The fourth proportional to 12,679,051.16, 17,497,089.12 and 7,172,307.98 is: 9,897,784.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679,051.16 : 17,497,089.12 = 7,172,307.98 : x
  2. Step 2: Convert to fraction form
    12,679,051.16/17,497,089.12 = 7,172,307.98/x
  3. Step 3: Cross multiply
    12,679,051.16x = 17,497,089.12 × 7,172,307.98
  4. Step 4: Simplify right side
    12,679,051.16x = 125,494,511,922,147.19
  5. Step 5: Solve for x
    x = 125,494,511,922,147.19/12,679,051.16
  6. Step 6: Final answer
    x = 9,897,784.17

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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.