Home / 147,191,881.75-203,126,140.19-81,114,750.86

Finding the Fourth Proportional to 147,191,881.75, 203,126,140.19 and 81,114,750.86

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Solution

The fourth proportional to 147,191,881.75, 203,126,140.19 and 81,114,750.86 is: 111,939,096.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191,881.75 : 203,126,140.19 = 81,114,750.86 : x
  2. Step 2: Convert to fraction form
    147,191,881.75/203,126,140.19 = 81,114,750.86/x
  3. Step 3: Cross multiply
    147,191,881.75x = 203,126,140.19 × 81,114,750.86
  4. Step 4: Simplify right side
    147,191,881.75x = 16,476,526,253,852,440
  5. Step 5: Solve for x
    x = 16,476,526,253,852,440/147,191,881.75
  6. Step 6: Final answer
    x = 111,939,096.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.