Home / 120,170,918,429.70-180,218,107,010.76-39,477,891,400.26

Finding the Fourth Proportional to 120,170,918,429.70, 180,218,107,010.76 and 39,477,891,400.26

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Solution

The fourth proportional to 120,170,918,429.70, 180,218,107,010.76 and 39,477,891,400.26 is: 59,204,264,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,170,918,429.70 : 180,218,107,010.76 = 39,477,891,400.26 : x
  2. Step 2: Convert to fraction form
    120,170,918,429.70/180,218,107,010.76 = 39,477,891,400.26/x
  3. Step 3: Cross multiply
    120,170,918,429.70x = 180,218,107,010.76 × 39,477,891,400.26
  4. Step 4: Simplify right side
    120,170,918,429.70x = 7,114,630,856,931,219,079,168
  5. Step 5: Solve for x
    x = 7,114,630,856,931,219,079,168/120,170,918,429.70
  6. Step 6: Final answer
    x = 59,204,264,641.56

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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.