Home / 639,077,276.24-881,918,018.24-356,824,064.64

Finding the Fourth Proportional to 639,077,276.24, 881,918,018.24 and 356,824,064.64

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Solution

The fourth proportional to 639,077,276.24, 881,918,018.24 and 356,824,064.64 is: 492,412,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,077,276.24 : 881,918,018.24 = 356,824,064.64 : x
  2. Step 2: Convert to fraction form
    639,077,276.24/881,918,018.24 = 356,824,064.64/x
  3. Step 3: Cross multiply
    639,077,276.24x = 881,918,018.24 × 356,824,064.64
  4. Step 4: Simplify right side
    639,077,276.24x = 314,689,571,947,650,432
  5. Step 5: Solve for x
    x = 314,689,571,947,650,432/639,077,276.24
  6. Step 6: Final answer
    x = 492,412,394.63

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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.