Home / 12,365,312.70-18,539,329.05-7,314,023.10

Finding the Fourth Proportional to 12,365,312.70, 18,539,329.05 and 7,314,023.10

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Solution

The fourth proportional to 12,365,312.70, 18,539,329.05 and 7,314,023.10 is: 10,965,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365,312.70 : 18,539,329.05 = 7,314,023.10 : x
  2. Step 2: Convert to fraction form
    12,365,312.70/18,539,329.05 = 7,314,023.10/x
  3. Step 3: Cross multiply
    12,365,312.70x = 18,539,329.05 × 7,314,023.10
  4. Step 4: Simplify right side
    12,365,312.70x = 135,597,080,930,201.05
  5. Step 5: Solve for x
    x = 135,597,080,930,201.05/12,365,312.70
  6. Step 6: Final answer
    x = 10,965,924.13

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1.5x scale

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.