Home / 127,488,215.20-191,232,322.80-101,979,047.20

Finding the Fourth Proportional to 127,488,215.20, 191,232,322.80 and 101,979,047.20

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Solution

The fourth proportional to 127,488,215.20, 191,232,322.80 and 101,979,047.20 is: 152,968,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,488,215.20 : 191,232,322.80 = 101,979,047.20 : x
  2. Step 2: Convert to fraction form
    127,488,215.20/191,232,322.80 = 101,979,047.20/x
  3. Step 3: Cross multiply
    127,488,215.20x = 191,232,322.80 × 101,979,047.20
  4. Step 4: Simplify right side
    127,488,215.20x = 19,501,690,072,986,836
  5. Step 5: Solve for x
    x = 19,501,690,072,986,836/127,488,215.20
  6. Step 6: Final answer
    x = 152,968,570.80

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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.