Home / 109,077,128.20-163,615,692.30-100,148,919.40

Finding the Fourth Proportional to 109,077,128.20, 163,615,692.30 and 100,148,919.40

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Solution

The fourth proportional to 109,077,128.20, 163,615,692.30 and 100,148,919.40 is: 150,223,379.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,077,128.20 : 163,615,692.30 = 100,148,919.40 : x
  2. Step 2: Convert to fraction form
    109,077,128.20/163,615,692.30 = 100,148,919.40/x
  3. Step 3: Cross multiply
    109,077,128.20x = 163,615,692.30 × 100,148,919.40
  4. Step 4: Simplify right side
    109,077,128.20x = 16,385,934,780,727,902
  5. Step 5: Solve for x
    x = 16,385,934,780,727,902/109,077,128.20
  6. Step 6: Final answer
    x = 150,223,379.10

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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.