Home / 118,195,287.32-177,362,018.31-85,373,491.16

Finding the Fourth Proportional to 118,195,287.32, 177,362,018.31 and 85,373,491.16

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Solution

The fourth proportional to 118,195,287.32, 177,362,018.31 and 85,373,491.16 is: 128,110,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,195,287.32 : 177,362,018.31 = 85,373,491.16 : x
  2. Step 2: Convert to fraction form
    118,195,287.32/177,362,018.31 = 85,373,491.16/x
  3. Step 3: Cross multiply
    118,195,287.32x = 177,362,018.31 × 85,373,491.16
  4. Step 4: Simplify right side
    118,195,287.32x = 15,142,014,703,321,292
  5. Step 5: Solve for x
    x = 15,142,014,703,321,292/118,195,287.32
  6. Step 6: Final answer
    x = 128,110,139.13

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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.