Home / 627,372,953.72-865,769,898.14-345,109,332.06

Finding the Fourth Proportional to 627,372,953.72, 865,769,898.14 and 345,109,332.06

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Solution

The fourth proportional to 627,372,953.72, 865,769,898.14 and 345,109,332.06 is: 476,248,249.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,372,953.72 : 865,769,898.14 = 345,109,332.06 : x
  2. Step 2: Convert to fraction form
    627,372,953.72/865,769,898.14 = 345,109,332.06/x
  3. Step 3: Cross multiply
    627,372,953.72x = 865,769,898.14 × 345,109,332.06
  4. Step 4: Simplify right side
    627,372,953.72x = 298,785,271,264,749,632
  5. Step 5: Solve for x
    x = 298,785,271,264,749,632/627,372,953.72
  6. Step 6: Final answer
    x = 476,248,249.93

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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.