Home / 515,869,591.44-711,881,334.78-315,262,082.36

Finding the Fourth Proportional to 515,869,591.44, 711,881,334.78 and 315,262,082.36

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Solution

The fourth proportional to 515,869,591.44, 711,881,334.78 and 315,262,082.36 is: 435,050,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,869,591.44 : 711,881,334.78 = 315,262,082.36 : x
  2. Step 2: Convert to fraction form
    515,869,591.44/711,881,334.78 = 315,262,082.36/x
  3. Step 3: Cross multiply
    515,869,591.44x = 711,881,334.78 × 315,262,082.36
  4. Step 4: Simplify right side
    515,869,591.44x = 224,429,191,995,959,104
  5. Step 5: Solve for x
    x = 224,429,191,995,959,104/515,869,591.44
  6. Step 6: Final answer
    x = 435,050,244.71

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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.