Home / 218,324,256.66-301,178,707.11-130,156,128.18

Finding the Fourth Proportional to 218,324,256.66, 301,178,707.11 and 130,156,128.18

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Solution

The fourth proportional to 218,324,256.66, 301,178,707.11 and 130,156,128.18 is: 179,550,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,324,256.66 : 301,178,707.11 = 130,156,128.18 : x
  2. Step 2: Convert to fraction form
    218,324,256.66/301,178,707.11 = 130,156,128.18/x
  3. Step 3: Cross multiply
    218,324,256.66x = 301,178,707.11 × 130,156,128.18
  4. Step 4: Simplify right side
    218,324,256.66x = 39,200,254,407,695,840
  5. Step 5: Solve for x
    x = 39,200,254,407,695,840/218,324,256.66
  6. Step 6: Final answer
    x = 179,550,614.34

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1.5x scale

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.