Home / 345,209,390.40-517,814,085.60-89,907,758.40

Finding the Fourth Proportional to 345,209,390.40, 517,814,085.60 and 89,907,758.40

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Solution

The fourth proportional to 345,209,390.40, 517,814,085.60 and 89,907,758.40 is: 134,861,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,209,390.40 : 517,814,085.60 = 89,907,758.40 : x
  2. Step 2: Convert to fraction form
    345,209,390.40/517,814,085.60 = 89,907,758.40/x
  3. Step 3: Cross multiply
    345,209,390.40x = 517,814,085.60 × 89,907,758.40
  4. Step 4: Simplify right side
    345,209,390.40x = 46,555,503,704,241,728
  5. Step 5: Solve for x
    x = 46,555,503,704,241,728/345,209,390.40
  6. Step 6: Final answer
    x = 134,861,637.60

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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.