Home / 103,747,423.20-155,621,134.80-31,943,839.20

Finding the Fourth Proportional to 103,747,423.20, 155,621,134.80 and 31,943,839.20

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Solution

The fourth proportional to 103,747,423.20, 155,621,134.80 and 31,943,839.20 is: 47,915,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,747,423.20 : 155,621,134.80 = 31,943,839.20 : x
  2. Step 2: Convert to fraction form
    103,747,423.20/155,621,134.80 = 31,943,839.20/x
  3. Step 3: Cross multiply
    103,747,423.20x = 155,621,134.80 × 31,943,839.20
  4. Step 4: Simplify right side
    103,747,423.20x = 4,971,136,506,172,724
  5. Step 5: Solve for x
    x = 4,971,136,506,172,724/103,747,423.20
  6. Step 6: Final answer
    x = 47,915,758.80

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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.