Home / 80,212,298,723.80-120,318,448,085.70-43,019,931,779.80

Finding the Fourth Proportional to 80,212,298,723.80, 120,318,448,085.70 and 43,019,931,779.80

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Solution

The fourth proportional to 80,212,298,723.80, 120,318,448,085.70 and 43,019,931,779.80 is: 64,529,897,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,212,298,723.80 : 120,318,448,085.70 = 43,019,931,779.80 : x
  2. Step 2: Convert to fraction form
    80,212,298,723.80/120,318,448,085.70 = 43,019,931,779.80/x
  3. Step 3: Cross multiply
    80,212,298,723.80x = 120,318,448,085.70 × 43,019,931,779.80
  4. Step 4: Simplify right side
    80,212,298,723.80x = 5,176,091,428,498,222,088,192
  5. Step 5: Solve for x
    x = 5,176,091,428,498,222,088,192/80,212,298,723.80
  6. Step 6: Final answer
    x = 64,529,897,669.70

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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.