Home / 20,163,840,458.40-30,245,760,687.60-10,865,748,722.40

Finding the Fourth Proportional to 20,163,840,458.40, 30,245,760,687.60 and 10,865,748,722.40

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Solution

The fourth proportional to 20,163,840,458.40, 30,245,760,687.60 and 10,865,748,722.40 is: 16,298,623,083.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163,840,458.40 : 30,245,760,687.60 = 10,865,748,722.40 : x
  2. Step 2: Convert to fraction form
    20,163,840,458.40/30,245,760,687.60 = 10,865,748,722.40/x
  3. Step 3: Cross multiply
    20,163,840,458.40x = 30,245,760,687.60 × 10,865,748,722.40
  4. Step 4: Simplify right side
    20,163,840,458.40x = 328,642,835,549,305,831,424
  5. Step 5: Solve for x
    x = 328,642,835,549,305,831,424/20,163,840,458.40
  6. Step 6: Final answer
    x = 16,298,623,083.60

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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.