Home / 36,778,941.20-55,168,411.80-31,039,378.40

Finding the Fourth Proportional to 36,778,941.20, 55,168,411.80 and 31,039,378.40

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Solution

The fourth proportional to 36,778,941.20, 55,168,411.80 and 31,039,378.40 is: 46,559,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,778,941.20 : 55,168,411.80 = 31,039,378.40 : x
  2. Step 2: Convert to fraction form
    36,778,941.20/55,168,411.80 = 31,039,378.40/x
  3. Step 3: Cross multiply
    36,778,941.20x = 55,168,411.80 × 31,039,378.40
  4. Step 4: Simplify right side
    36,778,941.20x = 1,712,393,209,587,225
  5. Step 5: Solve for x
    x = 1,712,393,209,587,225/36,778,941.20
  6. Step 6: Final answer
    x = 46,559,067.60

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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.