Home / 318,837,617.20-478,256,425.80-103,426,865.20

Finding the Fourth Proportional to 318,837,617.20, 478,256,425.80 and 103,426,865.20

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Solution

The fourth proportional to 318,837,617.20, 478,256,425.80 and 103,426,865.20 is: 155,140,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,837,617.20 : 478,256,425.80 = 103,426,865.20 : x
  2. Step 2: Convert to fraction form
    318,837,617.20/478,256,425.80 = 103,426,865.20/x
  3. Step 3: Cross multiply
    318,837,617.20x = 478,256,425.80 × 103,426,865.20
  4. Step 4: Simplify right side
    318,837,617.20x = 49,464,562,882,250,408
  5. Step 5: Solve for x
    x = 49,464,562,882,250,408/318,837,617.20
  6. Step 6: Final answer
    x = 155,140,297.80

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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.