Home / 387,168,238.38-534,292,245.84-210,956,233.74

Finding the Fourth Proportional to 387,168,238.38, 534,292,245.84 and 210,956,233.74

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Solution

The fourth proportional to 387,168,238.38, 534,292,245.84 and 210,956,233.74 is: 291,119,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,168,238.38 : 534,292,245.84 = 210,956,233.74 : x
  2. Step 2: Convert to fraction form
    387,168,238.38/534,292,245.84 = 210,956,233.74/x
  3. Step 3: Cross multiply
    387,168,238.38x = 534,292,245.84 × 210,956,233.74
  4. Step 4: Simplify right side
    387,168,238.38x = 112,712,279,898,892,576
  5. Step 5: Solve for x
    x = 112,712,279,898,892,576/387,168,238.38
  6. Step 6: Final answer
    x = 291,119,644.45

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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.