Home / 402,408,110.40-603,612,165.60-143,631,772.80

Finding the Fourth Proportional to 402,408,110.40, 603,612,165.60 and 143,631,772.80

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Solution

The fourth proportional to 402,408,110.40, 603,612,165.60 and 143,631,772.80 is: 215,447,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,110.40 : 603,612,165.60 = 143,631,772.80 : x
  2. Step 2: Convert to fraction form
    402,408,110.40/603,612,165.60 = 143,631,772.80/x
  3. Step 3: Cross multiply
    402,408,110.40x = 603,612,165.60 × 143,631,772.80
  4. Step 4: Simplify right side
    402,408,110.40x = 86,697,885,428,775,184
  5. Step 5: Solve for x
    x = 86,697,885,428,775,184/402,408,110.40
  6. Step 6: Final answer
    x = 215,447,659.20

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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.