Home / 1,010,540,334.92-1,516,353,162.76-420,737,739.10

Finding the Fourth Proportional to 1,010,540,334.92, 1,516,353,162.76 and 420,737,739.10

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Solution

The fourth proportional to 1,010,540,334.92, 1,516,353,162.76 and 420,737,739.10 is: 631,332,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,540,334.92 : 1,516,353,162.76 = 420,737,739.10 : x
  2. Step 2: Convert to fraction form
    1,010,540,334.92/1,516,353,162.76 = 420,737,739.10/x
  3. Step 3: Cross multiply
    1,010,540,334.92x = 1,516,353,162.76 × 420,737,739.10
  4. Step 4: Simplify right side
    1,010,540,334.92x = 637,987,001,376,776,704
  5. Step 5: Solve for x
    x = 637,987,001,376,776,704/1,010,540,334.92
  6. Step 6: Final answer
    x = 631,332,544.91

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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.