Home / 142,128,000.80-213,192,001.20-119,169,749.60

Finding the Fourth Proportional to 142,128,000.80, 213,192,001.20 and 119,169,749.60

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Solution

The fourth proportional to 142,128,000.80, 213,192,001.20 and 119,169,749.60 is: 178,754,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,128,000.80 : 213,192,001.20 = 119,169,749.60 : x
  2. Step 2: Convert to fraction form
    142,128,000.80/213,192,001.20 = 119,169,749.60/x
  3. Step 3: Cross multiply
    142,128,000.80x = 213,192,001.20 × 119,169,749.60
  4. Step 4: Simplify right side
    142,128,000.80x = 25,406,037,399,726,896
  5. Step 5: Solve for x
    x = 25,406,037,399,726,896/142,128,000.80
  6. Step 6: Final answer
    x = 178,754,624.40

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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.