Home / 387,113,231.52-534,214,648.32-210,900,678.24

Finding the Fourth Proportional to 387,113,231.52, 534,214,648.32 and 210,900,678.24

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Solution

The fourth proportional to 387,113,231.52, 534,214,648.32 and 210,900,678.24 is: 291,042,058.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,113,231.52 : 534,214,648.32 = 210,900,678.24 : x
  2. Step 2: Convert to fraction form
    387,113,231.52/534,214,648.32 = 210,900,678.24/x
  3. Step 3: Cross multiply
    387,113,231.52x = 534,214,648.32 × 210,900,678.24
  4. Step 4: Simplify right side
    387,113,231.52x = 112,666,231,656,431,088
  5. Step 5: Solve for x
    x = 112,666,231,656,431,088/387,113,231.52
  6. Step 6: Final answer
    x = 291,042,058.20

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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.