Home / 12,842,691.74-19,261,089.77-7,656,768.67

Finding the Fourth Proportional to 12,842,691.74, 19,261,089.77 and 7,656,768.67

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Solution

The fourth proportional to 12,842,691.74, 19,261,089.77 and 7,656,768.67 is: 11,483,395.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842,691.74 : 19,261,089.77 = 7,656,768.67 : x
  2. Step 2: Convert to fraction form
    12,842,691.74/19,261,089.77 = 7,656,768.67/x
  3. Step 3: Cross multiply
    12,842,691.74x = 19,261,089.77 × 7,656,768.67
  4. Step 4: Simplify right side
    12,842,691.74x = 147,477,708,710,054.62
  5. Step 5: Solve for x
    x = 147,477,708,710,054.62/12,842,691.74
  6. Step 6: Final answer
    x = 11,483,395.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.