Home / 287,580,942,912.15-431,371,414,368.23-120,008,667,403.35

Finding the Fourth Proportional to 287,580,942,912.15, 431,371,414,368.23 and 120,008,667,403.35

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Solution

The fourth proportional to 287,580,942,912.15, 431,371,414,368.23 and 120,008,667,403.35 is: 180,013,001,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,580,942,912.15 : 431,371,414,368.23 = 120,008,667,403.35 : x
  2. Step 2: Convert to fraction form
    287,580,942,912.15/431,371,414,368.23 = 120,008,667,403.35/x
  3. Step 3: Cross multiply
    287,580,942,912.15x = 431,371,414,368.23 × 120,008,667,403.35
  4. Step 4: Simplify right side
    287,580,942,912.15x = 51,768,308,594,229,592,981,504
  5. Step 5: Solve for x
    x = 51,768,308,594,229,592,981,504/287,580,942,912.15
  6. Step 6: Final answer
    x = 180,013,001,105.03

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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.