Home / 28,080,871,207.60-42,121,306,811.40-11,530,523,009.20

Finding the Fourth Proportional to 28,080,871,207.60, 42,121,306,811.40 and 11,530,523,009.20

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Solution

The fourth proportional to 28,080,871,207.60, 42,121,306,811.40 and 11,530,523,009.20 is: 17,295,784,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080,871,207.60 : 42,121,306,811.40 = 11,530,523,009.20 : x
  2. Step 2: Convert to fraction form
    28,080,871,207.60/42,121,306,811.40 = 11,530,523,009.20/x
  3. Step 3: Cross multiply
    28,080,871,207.60x = 42,121,306,811.40 × 11,530,523,009.20
  4. Step 4: Simplify right side
    28,080,871,207.60x = 485,680,697,366,420,455,424
  5. Step 5: Solve for x
    x = 485,680,697,366,420,455,424/28,080,871,207.60
  6. Step 6: Final answer
    x = 17,295,784,513.80

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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.