Home / 147,310,112-203,300,057.76-81,243,532.16

Finding the Fourth Proportional to 147,310,112, 203,300,057.76 and 81,243,532.16

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Solution

The fourth proportional to 147,310,112, 203,300,057.76 and 81,243,532.16 is: 112,122,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,310,112 : 203,300,057.76 = 81,243,532.16 : x
  2. Step 2: Convert to fraction form
    147,310,112/203,300,057.76 = 81,243,532.16/x
  3. Step 3: Cross multiply
    147,310,112x = 203,300,057.76 × 81,243,532.16
  4. Step 4: Simplify right side
    147,310,112x = 16,516,814,780,754,416
  5. Step 5: Solve for x
    x = 16,516,814,780,754,416/147,310,112
  6. Step 6: Final answer
    x = 112,122,749.46

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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.