Home / 558,900,860.40-771,265,096.71-320,785,238.93

Finding the Fourth Proportional to 558,900,860.40, 771,265,096.71 and 320,785,238.93

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Solution

The fourth proportional to 558,900,860.40, 771,265,096.71 and 320,785,238.93 is: 442,673,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,900,860.40 : 771,265,096.71 = 320,785,238.93 : x
  2. Step 2: Convert to fraction form
    558,900,860.40/771,265,096.71 = 320,785,238.93/x
  3. Step 3: Cross multiply
    558,900,860.40x = 771,265,096.71 × 320,785,238.93
  4. Step 4: Simplify right side
    558,900,860.40x = 247,410,458,322,630,592
  5. Step 5: Solve for x
    x = 247,410,458,322,630,592/558,900,860.40
  6. Step 6: Final answer
    x = 442,673,246.46

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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.