Home / 165,030,085.40-247,364,336.10-83,018,168.60

Finding the Fourth Proportional to 165,030,085.40, 247,364,336.10 and 83,018,168.60

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Solution

The fourth proportional to 165,030,085.40, 247,364,336.10 and 83,018,168.60 is: 124,436,305.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,030,085.40 : 247,364,336.10 = 83,018,168.60 : x
  2. Step 2: Convert to fraction form
    165,030,085.40/247,364,336.10 = 83,018,168.60/x
  3. Step 3: Cross multiply
    165,030,085.40x = 247,364,336.10 × 83,018,168.60
  4. Step 4: Simplify right side
    165,030,085.40x = 20,535,734,159,976,864
  5. Step 5: Solve for x
    x = 20,535,734,159,976,864/165,030,085.40
  6. Step 6: Final answer
    x = 124,436,305.72

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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.