Home / 661,723,320.40-992,584,980.60-170,435,640.40

Finding the Fourth Proportional to 661,723,320.40, 992,584,980.60 and 170,435,640.40

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Solution

The fourth proportional to 661,723,320.40, 992,584,980.60 and 170,435,640.40 is: 255,653,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,723,320.40 : 992,584,980.60 = 170,435,640.40 : x
  2. Step 2: Convert to fraction form
    661,723,320.40/992,584,980.60 = 170,435,640.40/x
  3. Step 3: Cross multiply
    661,723,320.40x = 992,584,980.60 × 170,435,640.40
  4. Step 4: Simplify right side
    661,723,320.40x = 169,171,856,819,982,592
  5. Step 5: Solve for x
    x = 169,171,856,819,982,592/661,723,320.40
  6. Step 6: Final answer
    x = 255,653,460.60

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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.