Home / 56,808,839.20-85,213,258.80-38,668,986.40

Finding the Fourth Proportional to 56,808,839.20, 85,213,258.80 and 38,668,986.40

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Solution

The fourth proportional to 56,808,839.20, 85,213,258.80 and 38,668,986.40 is: 58,003,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808,839.20 : 85,213,258.80 = 38,668,986.40 : x
  2. Step 2: Convert to fraction form
    56,808,839.20/85,213,258.80 = 38,668,986.40/x
  3. Step 3: Cross multiply
    56,808,839.20x = 85,213,258.80 × 38,668,986.40
  4. Step 4: Simplify right side
    56,808,839.20x = 3,295,110,345,636,880
  5. Step 5: Solve for x
    x = 3,295,110,345,636,880/56,808,839.20
  6. Step 6: Final answer
    x = 58,003,479.60

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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.