Home / 103,731,071.72-155,603,243.42-39,905,663.72

Finding the Fourth Proportional to 103,731,071.72, 155,603,243.42 and 39,905,663.72

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Solution

The fourth proportional to 103,731,071.72, 155,603,243.42 and 39,905,663.72 is: 59,861,048.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,731,071.72 : 155,603,243.42 = 39,905,663.72 : x
  2. Step 2: Convert to fraction form
    103,731,071.72/155,603,243.42 = 39,905,663.72/x
  3. Step 3: Cross multiply
    103,731,071.72x = 155,603,243.42 × 39,905,663.72
  4. Step 4: Simplify right side
    103,731,071.72x = 6,209,450,705,659,822
  5. Step 5: Solve for x
    x = 6,209,450,705,659,822/103,731,071.72
  6. Step 6: Final answer
    x = 59,861,048.41

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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.