Home / 398,817,893.90-598,167,004.52-126,153,231.50

Finding the Fourth Proportional to 398,817,893.90, 598,167,004.52 and 126,153,231.50

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Solution

The fourth proportional to 398,817,893.90, 598,167,004.52 and 126,153,231.50 is: 189,210,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,817,893.90 : 598,167,004.52 = 126,153,231.50 : x
  2. Step 2: Convert to fraction form
    398,817,893.90/598,167,004.52 = 126,153,231.50/x
  3. Step 3: Cross multiply
    398,817,893.90x = 598,167,004.52 × 126,153,231.50
  4. Step 4: Simplify right side
    398,817,893.90x = 75,460,700,596,873,104
  5. Step 5: Solve for x
    x = 75,460,700,596,873,104/398,817,893.90
  6. Step 6: Final answer
    x = 189,210,919.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.