Home / 122,348,009.70-183,522,014.55-85,997,445.30

Finding the Fourth Proportional to 122,348,009.70, 183,522,014.55 and 85,997,445.30

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Solution

The fourth proportional to 122,348,009.70, 183,522,014.55 and 85,997,445.30 is: 128,996,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,348,009.70 : 183,522,014.55 = 85,997,445.30 : x
  2. Step 2: Convert to fraction form
    122,348,009.70/183,522,014.55 = 85,997,445.30/x
  3. Step 3: Cross multiply
    122,348,009.70x = 183,522,014.55 × 85,997,445.30
  4. Step 4: Simplify right side
    122,348,009.70x = 15,782,424,407,609,430
  5. Step 5: Solve for x
    x = 15,782,424,407,609,430/122,348,009.70
  6. Step 6: Final answer
    x = 128,996,167.95

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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.