Home / 13,600,140.80-18,768,607.20-7,488,788.16

Finding the Fourth Proportional to 13,600,140.80, 18,768,607.20 and 7,488,788.16

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Solution

The fourth proportional to 13,600,140.80, 18,768,607.20 and 7,488,788.16 is: 10,334,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600,140.80 : 18,768,607.20 = 7,488,788.16 : x
  2. Step 2: Convert to fraction form
    13,600,140.80/18,768,607.20 = 7,488,788.16/x
  3. Step 3: Cross multiply
    13,600,140.80x = 18,768,607.20 × 7,488,788.16
  4. Step 4: Simplify right side
    13,600,140.80x = 140,554,123,379,050.75
  5. Step 5: Solve for x
    x = 140,554,123,379,050.75/13,600,140.80
  6. Step 6: Final answer
    x = 10,334,755.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.