Home / 142,128,077.80-213,192,116.70-119,169,826.60

Finding the Fourth Proportional to 142,128,077.80, 213,192,116.70 and 119,169,826.60

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Solution

The fourth proportional to 142,128,077.80, 213,192,116.70 and 119,169,826.60 is: 178,754,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,128,077.80 : 213,192,116.70 = 119,169,826.60 : x
  2. Step 2: Convert to fraction form
    142,128,077.80/213,192,116.70 = 119,169,826.60/x
  3. Step 3: Cross multiply
    142,128,077.80x = 213,192,116.70 × 119,169,826.60
  4. Step 4: Simplify right side
    142,128,077.80x = 25,406,067,579,625,960
  5. Step 5: Solve for x
    x = 25,406,067,579,625,960/142,128,077.80
  6. Step 6: Final answer
    x = 178,754,739.90

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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.