Home / 1,328,835,672.32-1,820,474,411.68-1,279,153,967.36

Finding the Fourth Proportional to 1,328,835,672.32, 1,820,474,411.68 and 1,279,153,967.36

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Solution

The fourth proportional to 1,328,835,672.32, 1,820,474,411.68 and 1,279,153,967.36 is: 1,752,411,614.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,835,672.32 : 1,820,474,411.68 = 1,279,153,967.36 : x
  2. Step 2: Convert to fraction form
    1,328,835,672.32/1,820,474,411.68 = 1,279,153,967.36/x
  3. Step 3: Cross multiply
    1,328,835,672.32x = 1,820,474,411.68 × 1,279,153,967.36
  4. Step 4: Simplify right side
    1,328,835,672.32x = 2,328,667,066,177,833,984
  5. Step 5: Solve for x
    x = 2,328,667,066,177,833,984/1,328,835,672.32
  6. Step 6: Final answer
    x = 1,752,411,614.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.