Home / 142,475,890.59-196,617,456.90-80,594,900.55

Finding the Fourth Proportional to 142,475,890.59, 196,617,456.90 and 80,594,900.55

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Solution

The fourth proportional to 142,475,890.59, 196,617,456.90 and 80,594,900.55 is: 111,221,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,475,890.59 : 196,617,456.90 = 80,594,900.55 : x
  2. Step 2: Convert to fraction form
    142,475,890.59/196,617,456.90 = 80,594,900.55/x
  3. Step 3: Cross multiply
    142,475,890.59x = 196,617,456.90 × 80,594,900.55
  4. Step 4: Simplify right side
    142,475,890.59x = 15,846,364,385,249,412
  5. Step 5: Solve for x
    x = 15,846,364,385,249,412/142,475,890.59
  6. Step 6: Final answer
    x = 111,221,374.51

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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.