Home / 12,358,069.20-18,537,103.80-7,306,779.60

Finding the Fourth Proportional to 12,358,069.20, 18,537,103.80 and 7,306,779.60

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Solution

The fourth proportional to 12,358,069.20, 18,537,103.80 and 7,306,779.60 is: 10,960,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358,069.20 : 18,537,103.80 = 7,306,779.60 : x
  2. Step 2: Convert to fraction form
    12,358,069.20/18,537,103.80 = 7,306,779.60/x
  3. Step 3: Cross multiply
    12,358,069.20x = 18,537,103.80 × 7,306,779.60
  4. Step 4: Simplify right side
    12,358,069.20x = 135,446,531,888,922.48
  5. Step 5: Solve for x
    x = 135,446,531,888,922.48/12,358,069.20
  6. Step 6: Final answer
    x = 10,960,169.40

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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.