Home / 440,695,965.60-660,288,121.20-210,168,669.60

Finding the Fourth Proportional to 440,695,965.60, 660,288,121.20 and 210,168,669.60

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Solution

The fourth proportional to 440,695,965.60, 660,288,121.20 and 210,168,669.60 is: 314,892,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,695,965.60 : 660,288,121.20 = 210,168,669.60 : x
  2. Step 2: Convert to fraction form
    440,695,965.60/660,288,121.20 = 210,168,669.60/x
  3. Step 3: Cross multiply
    440,695,965.60x = 660,288,121.20 × 210,168,669.60
  4. Step 4: Simplify right side
    440,695,965.60x = 138,771,875,985,287,568
  5. Step 5: Solve for x
    x = 138,771,875,985,287,568/440,695,965.60
  6. Step 6: Final answer
    x = 314,892,549.10

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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.