Home / 739,421,138.72-1,020,433,054.20-409,396,268

Finding the Fourth Proportional to 739,421,138.72, 1,020,433,054.20 and 409,396,268

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Solution

The fourth proportional to 739,421,138.72, 1,020,433,054.20 and 409,396,268 is: 564,984,502.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,421,138.72 : 1,020,433,054.20 = 409,396,268 : x
  2. Step 2: Convert to fraction form
    739,421,138.72/1,020,433,054.20 = 409,396,268/x
  3. Step 3: Cross multiply
    739,421,138.72x = 1,020,433,054.20 × 409,396,268
  4. Step 4: Simplify right side
    739,421,138.72x = 417,761,484,133,321,728
  5. Step 5: Solve for x
    x = 417,761,484,133,321,728/739,421,138.72
  6. Step 6: Final answer
    x = 564,984,502.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.