Home / 5,149,449,715.20-7,724,174,572.80-1,878,005,644.80

Finding the Fourth Proportional to 5,149,449,715.20, 7,724,174,572.80 and 1,878,005,644.80

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Solution

The fourth proportional to 5,149,449,715.20, 7,724,174,572.80 and 1,878,005,644.80 is: 2,817,008,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149,449,715.20 : 7,724,174,572.80 = 1,878,005,644.80 : x
  2. Step 2: Convert to fraction form
    5,149,449,715.20/7,724,174,572.80 = 1,878,005,644.80/x
  3. Step 3: Cross multiply
    5,149,449,715.20x = 7,724,174,572.80 × 1,878,005,644.80
  4. Step 4: Simplify right side
    5,149,449,715.20x = 14,506,043,449,139,027,968
  5. Step 5: Solve for x
    x = 14,506,043,449,139,027,968/5,149,449,715.20
  6. Step 6: Final answer
    x = 2,817,008,467.20

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Double scale
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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.