Home / 203,700,376.40-305,550,564.60-74,312,207.60

Finding the Fourth Proportional to 203,700,376.40, 305,550,564.60 and 74,312,207.60

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Solution

The fourth proportional to 203,700,376.40, 305,550,564.60 and 74,312,207.60 is: 111,468,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,700,376.40 : 305,550,564.60 = 74,312,207.60 : x
  2. Step 2: Convert to fraction form
    203,700,376.40/305,550,564.60 = 74,312,207.60/x
  3. Step 3: Cross multiply
    203,700,376.40x = 305,550,564.60 × 74,312,207.60
  4. Step 4: Simplify right side
    203,700,376.40x = 22,706,136,988,852,412
  5. Step 5: Solve for x
    x = 22,706,136,988,852,412/203,700,376.40
  6. Step 6: Final answer
    x = 111,468,311.40

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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.