Home / 354,294,606.60-531,441,909.90-208,653,200.55

Finding the Fourth Proportional to 354,294,606.60, 531,441,909.90 and 208,653,200.55

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Solution

The fourth proportional to 354,294,606.60, 531,441,909.90 and 208,653,200.55 is: 312,979,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,606.60 : 531,441,909.90 = 208,653,200.55 : x
  2. Step 2: Convert to fraction form
    354,294,606.60/531,441,909.90 = 208,653,200.55/x
  3. Step 3: Cross multiply
    354,294,606.60x = 531,441,909.90 × 208,653,200.55
  4. Step 4: Simplify right side
    354,294,606.60x = 110,887,055,407,039,728
  5. Step 5: Solve for x
    x = 110,887,055,407,039,728/354,294,606.60
  6. Step 6: Final answer
    x = 312,979,800.83

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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.