Home / 402,408,031.20-603,612,046.80-399,857,114.40

Finding the Fourth Proportional to 402,408,031.20, 603,612,046.80 and 399,857,114.40

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Solution

The fourth proportional to 402,408,031.20, 603,612,046.80 and 399,857,114.40 is: 599,785,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,031.20 : 603,612,046.80 = 399,857,114.40 : x
  2. Step 2: Convert to fraction form
    402,408,031.20/603,612,046.80 = 399,857,114.40/x
  3. Step 3: Cross multiply
    402,408,031.20x = 603,612,046.80 × 399,857,114.40
  4. Step 4: Simplify right side
    402,408,031.20x = 241,358,571,250,525,728
  5. Step 5: Solve for x
    x = 241,358,571,250,525,728/402,408,031.20
  6. Step 6: Final answer
    x = 599,785,671.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.