Home / 12,152,997,487.60-18,218,017,105.80-7,182,536,102.80

Finding the Fourth Proportional to 12,152,997,487.60, 18,218,017,105.80 and 7,182,536,102.80

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Solution

The fourth proportional to 12,152,997,487.60, 18,218,017,105.80 and 7,182,536,102.80 is: 10,767,019,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152,997,487.60 : 18,218,017,105.80 = 7,182,536,102.80 : x
  2. Step 2: Convert to fraction form
    12,152,997,487.60/18,218,017,105.80 = 7,182,536,102.80/x
  3. Step 3: Cross multiply
    12,152,997,487.60x = 18,218,017,105.80 × 7,182,536,102.80
  4. Step 4: Simplify right side
    12,152,997,487.60x = 130,851,565,583,836,463,104
  5. Step 5: Solve for x
    x = 130,851,565,583,836,463,104/12,152,997,487.60
  6. Step 6: Final answer
    x = 10,767,019,882.74

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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.