Home / 103,358,885.88-155,030,193.18-45,065,188.20

Finding the Fourth Proportional to 103,358,885.88, 155,030,193.18 and 45,065,188.20

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Solution

The fourth proportional to 103,358,885.88, 155,030,193.18 and 45,065,188.20 is: 67,594,235.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,358,885.88 : 155,030,193.18 = 45,065,188.20 : x
  2. Step 2: Convert to fraction form
    103,358,885.88/155,030,193.18 = 45,065,188.20/x
  3. Step 3: Cross multiply
    103,358,885.88x = 155,030,193.18 × 45,065,188.20
  4. Step 4: Simplify right side
    103,358,885.88x = 6,986,464,832,339,057
  5. Step 5: Solve for x
    x = 6,986,464,832,339,057/103,358,885.88
  6. Step 6: Final answer
    x = 67,594,235.10

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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.