Home / 714,077,054.79-985,372,255.62-400,750,755.27

Finding the Fourth Proportional to 714,077,054.79, 985,372,255.62 and 400,750,755.27

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Solution

The fourth proportional to 714,077,054.79, 985,372,255.62 and 400,750,755.27 is: 553,005,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,077,054.79 : 985,372,255.62 = 400,750,755.27 : x
  2. Step 2: Convert to fraction form
    714,077,054.79/985,372,255.62 = 400,750,755.27/x
  3. Step 3: Cross multiply
    714,077,054.79x = 985,372,255.62 × 400,750,755.27
  4. Step 4: Simplify right side
    714,077,054.79x = 394,888,675,661,818,496
  5. Step 5: Solve for x
    x = 394,888,675,661,818,496/714,077,054.79
  6. Step 6: Final answer
    x = 553,005,691.77

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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.