Home / 472,147,688.40-708,221,532.60-165,399,943.20

Finding the Fourth Proportional to 472,147,688.40, 708,221,532.60 and 165,399,943.20

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Solution

The fourth proportional to 472,147,688.40, 708,221,532.60 and 165,399,943.20 is: 248,099,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,147,688.40 : 708,221,532.60 = 165,399,943.20 : x
  2. Step 2: Convert to fraction form
    472,147,688.40/708,221,532.60 = 165,399,943.20/x
  3. Step 3: Cross multiply
    472,147,688.40x = 708,221,532.60 × 165,399,943.20
  4. Step 4: Simplify right side
    472,147,688.40x = 117,139,801,265,056,944
  5. Step 5: Solve for x
    x = 117,139,801,265,056,944/472,147,688.40
  6. Step 6: Final answer
    x = 248,099,914.80

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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.