Home / 31,619,631.13-47,409,127.09-13,188,291.93

Finding the Fourth Proportional to 31,619,631.13, 47,409,127.09 and 13,188,291.93

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Solution

The fourth proportional to 31,619,631.13, 47,409,127.09 and 13,188,291.93 is: 19,773,962.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619,631.13 : 47,409,127.09 = 13,188,291.93 : x
  2. Step 2: Convert to fraction form
    31,619,631.13/47,409,127.09 = 13,188,291.93/x
  3. Step 3: Cross multiply
    31,619,631.13x = 47,409,127.09 × 13,188,291.93
  4. Step 4: Simplify right side
    31,619,631.13x = 625,245,408,176,420.62
  5. Step 5: Solve for x
    x = 625,245,408,176,420.62/31,619,631.13
  6. Step 6: Final answer
    x = 19,773,962.75

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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.