Home / 201,465,309.60-302,197,964.40-72,077,140.80

Finding the Fourth Proportional to 201,465,309.60, 302,197,964.40 and 72,077,140.80

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Solution

The fourth proportional to 201,465,309.60, 302,197,964.40 and 72,077,140.80 is: 108,115,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,465,309.60 : 302,197,964.40 = 72,077,140.80 : x
  2. Step 2: Convert to fraction form
    201,465,309.60/302,197,964.40 = 72,077,140.80/x
  3. Step 3: Cross multiply
    201,465,309.60x = 302,197,964.40 × 72,077,140.80
  4. Step 4: Simplify right side
    201,465,309.60x = 21,781,565,229,532,184
  5. Step 5: Solve for x
    x = 21,781,565,229,532,184/201,465,309.60
  6. Step 6: Final answer
    x = 108,115,711.20

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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.