Home / 463,955,851.32-640,282,058.90-287,800,603.88

Finding the Fourth Proportional to 463,955,851.32, 640,282,058.90 and 287,800,603.88

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Solution

The fourth proportional to 463,955,851.32, 640,282,058.90 and 287,800,603.88 is: 397,179,090.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,955,851.32 : 640,282,058.90 = 287,800,603.88 : x
  2. Step 2: Convert to fraction form
    463,955,851.32/640,282,058.90 = 287,800,603.88/x
  3. Step 3: Cross multiply
    463,955,851.32x = 640,282,058.90 × 287,800,603.88
  4. Step 4: Simplify right side
    463,955,851.32x = 184,273,563,202,194,432
  5. Step 5: Solve for x
    x = 184,273,563,202,194,432/463,955,851.32
  6. Step 6: Final answer
    x = 397,179,090.81

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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.