Home / 72,500,405.10-100,050,975.12-39,460,575.43

Finding the Fourth Proportional to 72,500,405.10, 100,050,975.12 and 39,460,575.43

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Solution

The fourth proportional to 72,500,405.10, 100,050,975.12 and 39,460,575.43 is: 54,455,820.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,500,405.10 : 100,050,975.12 = 39,460,575.43 : x
  2. Step 2: Convert to fraction form
    72,500,405.10/100,050,975.12 = 39,460,575.43/x
  3. Step 3: Cross multiply
    72,500,405.10x = 100,050,975.12 × 39,460,575.43
  4. Step 4: Simplify right side
    72,500,405.10x = 3,948,069,050,567,813.50
  5. Step 5: Solve for x
    x = 3,948,069,050,567,813.50/72,500,405.10
  6. Step 6: Final answer
    x = 54,455,820.56

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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.