Home / 50,688,003.20-76,032,004.80-20,417,590.40

Finding the Fourth Proportional to 50,688,003.20, 76,032,004.80 and 20,417,590.40

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Solution

The fourth proportional to 50,688,003.20, 76,032,004.80 and 20,417,590.40 is: 30,626,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,688,003.20 : 76,032,004.80 = 20,417,590.40 : x
  2. Step 2: Convert to fraction form
    50,688,003.20/76,032,004.80 = 20,417,590.40/x
  3. Step 3: Cross multiply
    50,688,003.20x = 76,032,004.80 × 20,417,590.40
  4. Step 4: Simplify right side
    50,688,003.20x = 1,552,390,331,297,233.75
  5. Step 5: Solve for x
    x = 1,552,390,331,297,233.75/50,688,003.20
  6. Step 6: Final answer
    x = 30,626,385.60

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Similar ratio
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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.