Home / 18,920,827,438.20-28,383,184,195.02-7,139,860,612.92

Finding the Fourth Proportional to 18,920,827,438.20, 28,383,184,195.02 and 7,139,860,612.92

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Solution

The fourth proportional to 18,920,827,438.20, 28,383,184,195.02 and 7,139,860,612.92 is: 10,710,524,133.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,827,438.20 : 28,383,184,195.02 = 7,139,860,612.92 : x
  2. Step 2: Convert to fraction form
    18,920,827,438.20/28,383,184,195.02 = 7,139,860,612.92/x
  3. Step 3: Cross multiply
    18,920,827,438.20x = 28,383,184,195.02 × 7,139,860,612.92
  4. Step 4: Simplify right side
    18,920,827,438.20x = 202,651,978,903,276,748,800
  5. Step 5: Solve for x
    x = 202,651,978,903,276,748,800/18,920,827,438.20
  6. Step 6: Final answer
    x = 10,710,524,133.53

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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.