Home / 133,091,534.40-199,301,378.40-87,405,979.20

Finding the Fourth Proportional to 133,091,534.40, 199,301,378.40 and 87,405,979.20

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Solution

The fourth proportional to 133,091,534.40, 199,301,378.40 and 87,405,979.20 is: 130,888,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,091,534.40 : 199,301,378.40 = 87,405,979.20 : x
  2. Step 2: Convert to fraction form
    133,091,534.40/199,301,378.40 = 87,405,979.20/x
  3. Step 3: Cross multiply
    133,091,534.40x = 199,301,378.40 × 87,405,979.20
  4. Step 4: Simplify right side
    133,091,534.40x = 17,420,132,134,961,730
  5. Step 5: Solve for x
    x = 17,420,132,134,961,730/133,091,534.40
  6. Step 6: Final answer
    x = 130,888,356.00

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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.