Home / 12,999,658.01-17,939,307.47-7,198,315.16

Finding the Fourth Proportional to 12,999,658.01, 17,939,307.47 and 7,198,315.16

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Solution

The fourth proportional to 12,999,658.01, 17,939,307.47 and 7,198,315.16 is: 9,933,552.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,658.01 : 17,939,307.47 = 7,198,315.16 : x
  2. Step 2: Convert to fraction form
    12,999,658.01/17,939,307.47 = 7,198,315.16/x
  3. Step 3: Cross multiply
    12,999,658.01x = 17,939,307.47 × 7,198,315.16
  4. Step 4: Simplify right side
    12,999,658.01x = 129,132,788,795,514.14
  5. Step 5: Solve for x
    x = 129,132,788,795,514.14/12,999,658.01
  6. Step 6: Final answer
    x = 9,933,552.77

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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.