Home / 128,124,014.10-191,738,123.55-117,374,471.70

Finding the Fourth Proportional to 128,124,014.10, 191,738,123.55 and 117,374,471.70

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Solution

The fourth proportional to 128,124,014.10, 191,738,123.55 and 117,374,471.70 is: 175,651,388.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,124,014.10 : 191,738,123.55 = 117,374,471.70 : x
  2. Step 2: Convert to fraction form
    128,124,014.10/191,738,123.55 = 117,374,471.70/x
  3. Step 3: Cross multiply
    128,124,014.10x = 191,738,123.55 × 117,374,471.70
  4. Step 4: Simplify right side
    128,124,014.10x = 22,505,160,956,430,580
  5. Step 5: Solve for x
    x = 22,505,160,956,430,580/128,124,014.10
  6. Step 6: Final answer
    x = 175,651,388.34

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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.