Home / 72,771,291.40-109,156,937.10-36,385,297.60

Finding the Fourth Proportional to 72,771,291.40, 109,156,937.10 and 36,385,297.60

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Solution

The fourth proportional to 72,771,291.40, 109,156,937.10 and 36,385,297.60 is: 54,577,946.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,291.40 : 109,156,937.10 = 36,385,297.60 : x
  2. Step 2: Convert to fraction form
    72,771,291.40/109,156,937.10 = 36,385,297.60/x
  3. Step 3: Cross multiply
    72,771,291.40x = 109,156,937.10 × 36,385,297.60
  4. Step 4: Simplify right side
    72,771,291.40x = 3,971,707,641,487,981
  5. Step 5: Solve for x
    x = 3,971,707,641,487,981/72,771,291.40
  6. Step 6: Final answer
    x = 54,577,946.40

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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.