Home / 1,281,335,718.64-1,921,809,380.09-348,731,240.56

Finding the Fourth Proportional to 1,281,335,718.64, 1,921,809,380.09 and 348,731,240.56

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Solution

The fourth proportional to 1,281,335,718.64, 1,921,809,380.09 and 348,731,240.56 is: 523,044,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,335,718.64 : 1,921,809,380.09 = 348,731,240.56 : x
  2. Step 2: Convert to fraction form
    1,281,335,718.64/1,921,809,380.09 = 348,731,240.56/x
  3. Step 3: Cross multiply
    1,281,335,718.64x = 1,921,809,380.09 × 348,731,240.56
  4. Step 4: Simplify right side
    1,281,335,718.64x = 670,194,969,238,630,272
  5. Step 5: Solve for x
    x = 670,194,969,238,630,272/1,281,335,718.64
  6. Step 6: Final answer
    x = 523,044,007.51

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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.