Home / 166,464,007.20-249,696,010.80-85,842,439.20

Finding the Fourth Proportional to 166,464,007.20, 249,696,010.80 and 85,842,439.20

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Solution

The fourth proportional to 166,464,007.20, 249,696,010.80 and 85,842,439.20 is: 128,763,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,464,007.20 : 249,696,010.80 = 85,842,439.20 : x
  2. Step 2: Convert to fraction form
    166,464,007.20/249,696,010.80 = 85,842,439.20/x
  3. Step 3: Cross multiply
    166,464,007.20x = 249,696,010.80 × 85,842,439.20
  4. Step 4: Simplify right side
    166,464,007.20x = 21,434,514,625,581,544
  5. Step 5: Solve for x
    x = 21,434,514,625,581,544/166,464,007.20
  6. Step 6: Final answer
    x = 128,763,658.80

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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.