Home / 12,699,068.17-17,526,167.88-7,118,821.85

Finding the Fourth Proportional to 12,699,068.17, 17,526,167.88 and 7,118,821.85

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Solution

The fourth proportional to 12,699,068.17, 17,526,167.88 and 7,118,821.85 is: 9,824,789.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699,068.17 : 17,526,167.88 = 7,118,821.85 : x
  2. Step 2: Convert to fraction form
    12,699,068.17/17,526,167.88 = 7,118,821.85/x
  3. Step 3: Cross multiply
    12,699,068.17x = 17,526,167.88 × 7,118,821.85
  4. Step 4: Simplify right side
    12,699,068.17x = 124,765,666,912,524.66
  5. Step 5: Solve for x
    x = 124,765,666,912,524.66/12,699,068.17
  6. Step 6: Final answer
    x = 9,824,789.13

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1.5x scale

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.