Home / 558,973,997.12-771,374,081.76-304,657,642.88

Finding the Fourth Proportional to 558,973,997.12, 771,374,081.76 and 304,657,642.88

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Solution

The fourth proportional to 558,973,997.12, 771,374,081.76 and 304,657,642.88 is: 420,422,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,973,997.12 : 771,374,081.76 = 304,657,642.88 : x
  2. Step 2: Convert to fraction form
    558,973,997.12/771,374,081.76 = 304,657,642.88/x
  3. Step 3: Cross multiply
    558,973,997.12x = 771,374,081.76 × 304,657,642.88
  4. Step 4: Simplify right side
    558,973,997.12x = 235,005,009,527,725,984
  5. Step 5: Solve for x
    x = 235,005,009,527,725,984/558,973,997.12
  6. Step 6: Final answer
    x = 420,422,078.20

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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.