Home / 336,806,412.40-505,209,618.60-311,612,172.40

Finding the Fourth Proportional to 336,806,412.40, 505,209,618.60 and 311,612,172.40

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Solution

The fourth proportional to 336,806,412.40, 505,209,618.60 and 311,612,172.40 is: 467,418,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,806,412.40 : 505,209,618.60 = 311,612,172.40 : x
  2. Step 2: Convert to fraction form
    336,806,412.40/505,209,618.60 = 311,612,172.40/x
  3. Step 3: Cross multiply
    336,806,412.40x = 505,209,618.60 × 311,612,172.40
  4. Step 4: Simplify right side
    336,806,412.40x = 157,429,466,769,321,440
  5. Step 5: Solve for x
    x = 157,429,466,769,321,440/336,806,412.40
  6. Step 6: Final answer
    x = 467,418,258.60

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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.