Home / 103,037,788.80-154,423,972.80-78,984,028.80

Finding the Fourth Proportional to 103,037,788.80, 154,423,972.80 and 78,984,028.80

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Solution

The fourth proportional to 103,037,788.80, 154,423,972.80 and 78,984,028.80 is: 118,374,313.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037,788.80 : 154,423,972.80 = 78,984,028.80 : x
  2. Step 2: Convert to fraction form
    103,037,788.80/154,423,972.80 = 78,984,028.80/x
  3. Step 3: Cross multiply
    103,037,788.80x = 154,423,972.80 × 78,984,028.80
  4. Step 4: Simplify right side
    103,037,788.80x = 12,197,027,515,045,618
  5. Step 5: Solve for x
    x = 12,197,027,515,045,618/103,037,788.80
  6. Step 6: Final answer
    x = 118,374,313.51

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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.