Home / 209,148,862.85-313,117,465.35-157,550,771.78

Finding the Fourth Proportional to 209,148,862.85, 313,117,465.35 and 157,550,771.78

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Solution

The fourth proportional to 209,148,862.85, 313,117,465.35 and 157,550,771.78 is: 235,869,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,148,862.85 : 313,117,465.35 = 157,550,771.78 : x
  2. Step 2: Convert to fraction form
    209,148,862.85/313,117,465.35 = 157,550,771.78/x
  3. Step 3: Cross multiply
    209,148,862.85x = 313,117,465.35 × 157,550,771.78
  4. Step 4: Simplify right side
    209,148,862.85x = 49,331,898,323,689,912
  5. Step 5: Solve for x
    x = 49,331,898,323,689,912/209,148,862.85
  6. Step 6: Final answer
    x = 235,869,789.83

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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.