Home / 440,120,712.30-660,181,068.45-210,538,200.30

Finding the Fourth Proportional to 440,120,712.30, 660,181,068.45 and 210,538,200.30

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Solution

The fourth proportional to 440,120,712.30, 660,181,068.45 and 210,538,200.30 is: 315,807,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,120,712.30 : 660,181,068.45 = 210,538,200.30 : x
  2. Step 2: Convert to fraction form
    440,120,712.30/660,181,068.45 = 210,538,200.30/x
  3. Step 3: Cross multiply
    440,120,712.30x = 660,181,068.45 × 210,538,200.30
  4. Step 4: Simplify right side
    440,120,712.30x = 138,993,334,023,594,128
  5. Step 5: Solve for x
    x = 138,993,334,023,594,128/440,120,712.30
  6. Step 6: Final answer
    x = 315,807,300.45

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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.