Home / 43,452,012.70-65,178,019.05-42,780,166.30

Finding the Fourth Proportional to 43,452,012.70, 65,178,019.05 and 42,780,166.30

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Solution

The fourth proportional to 43,452,012.70, 65,178,019.05 and 42,780,166.30 is: 64,170,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,452,012.70 : 65,178,019.05 = 42,780,166.30 : x
  2. Step 2: Convert to fraction form
    43,452,012.70/65,178,019.05 = 42,780,166.30/x
  3. Step 3: Cross multiply
    43,452,012.70x = 65,178,019.05 × 42,780,166.30
  4. Step 4: Simplify right side
    43,452,012.70x = 2,788,326,494,063,567.50
  5. Step 5: Solve for x
    x = 2,788,326,494,063,567.50/43,452,012.70
  6. Step 6: Final answer
    x = 64,170,249.45

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Double scale
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Similar ratio
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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.