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Finding the Fourth Proportional to 60,490,863.70, 90,736,295.55 and 20,101,347.70

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Solution

The fourth proportional to 60,490,863.70, 90,736,295.55 and 20,101,347.70 is: 30,152,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490,863.70 : 90,736,295.55 = 20,101,347.70 : x
  2. Step 2: Convert to fraction form
    60,490,863.70/90,736,295.55 = 20,101,347.70/x
  3. Step 3: Cross multiply
    60,490,863.70x = 90,736,295.55 × 20,101,347.70
  4. Step 4: Simplify right side
    60,490,863.70x = 1,823,921,825,860,512.50
  5. Step 5: Solve for x
    x = 1,823,921,825,860,512.50/60,490,863.70
  6. Step 6: Final answer
    x = 30,152,021.55

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1.5x scale

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.