Home / 558,973,998.12-771,374,083.14-304,657,643.88

Finding the Fourth Proportional to 558,973,998.12, 771,374,083.14 and 304,657,643.88

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Solution

The fourth proportional to 558,973,998.12, 771,374,083.14 and 304,657,643.88 is: 420,422,079.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,973,998.12 : 771,374,083.14 = 304,657,643.88 : x
  2. Step 2: Convert to fraction form
    558,973,998.12/771,374,083.14 = 304,657,643.88/x
  3. Step 3: Cross multiply
    558,973,998.12x = 771,374,083.14 × 304,657,643.88
  4. Step 4: Simplify right side
    558,973,998.12x = 235,005,010,719,527,616
  5. Step 5: Solve for x
    x = 235,005,010,719,527,616/558,973,998.12
  6. Step 6: Final answer
    x = 420,422,079.58

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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.