Home / 142,261,803.08-196,321,487.46-77,071,707.08

Finding the Fourth Proportional to 142,261,803.08, 196,321,487.46 and 77,071,707.08

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Solution

The fourth proportional to 142,261,803.08, 196,321,487.46 and 77,071,707.08 is: 106,359,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,261,803.08 : 196,321,487.46 = 77,071,707.08 : x
  2. Step 2: Convert to fraction form
    142,261,803.08/196,321,487.46 = 77,071,707.08/x
  3. Step 3: Cross multiply
    142,261,803.08x = 196,321,487.46 × 77,071,707.08
  4. Step 4: Simplify right side
    142,261,803.08x = 15,130,832,175,027,014
  5. Step 5: Solve for x
    x = 15,130,832,175,027,014/142,261,803.08
  6. Step 6: Final answer
    x = 106,359,063.69

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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.