Home / 289,991,328.48-400,188,011.04-157,833,272.64

Finding the Fourth Proportional to 289,991,328.48, 400,188,011.04 and 157,833,272.64

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Solution

The fourth proportional to 289,991,328.48, 400,188,011.04 and 157,833,272.64 is: 217,809,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,328.48 : 400,188,011.04 = 157,833,272.64 : x
  2. Step 2: Convert to fraction form
    289,991,328.48/400,188,011.04 = 157,833,272.64/x
  3. Step 3: Cross multiply
    289,991,328.48x = 400,188,011.04 × 157,833,272.64
  4. Step 4: Simplify right side
    289,991,328.48x = 63,162,983,453,735,648
  5. Step 5: Solve for x
    x = 63,162,983,453,735,648/289,991,328.48
  6. Step 6: Final answer
    x = 217,809,904.13

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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.