Home / 103,747,421.70-155,621,132.55-31,943,837.70

Finding the Fourth Proportional to 103,747,421.70, 155,621,132.55 and 31,943,837.70

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Solution

The fourth proportional to 103,747,421.70, 155,621,132.55 and 31,943,837.70 is: 47,915,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,747,421.70 : 155,621,132.55 = 31,943,837.70 : x
  2. Step 2: Convert to fraction form
    103,747,421.70/155,621,132.55 = 31,943,837.70/x
  3. Step 3: Cross multiply
    103,747,421.70x = 155,621,132.55 × 31,943,837.70
  4. Step 4: Simplify right side
    103,747,421.70x = 4,971,136,200,867,387
  5. Step 5: Solve for x
    x = 4,971,136,200,867,387/103,747,421.70
  6. Step 6: Final answer
    x = 47,915,756.55

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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.