Home / 201,012,507.60-301,518,761.40-71,766,056.40

Finding the Fourth Proportional to 201,012,507.60, 301,518,761.40 and 71,766,056.40

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Solution

The fourth proportional to 201,012,507.60, 301,518,761.40 and 71,766,056.40 is: 107,649,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,012,507.60 : 301,518,761.40 = 71,766,056.40 : x
  2. Step 2: Convert to fraction form
    201,012,507.60/301,518,761.40 = 71,766,056.40/x
  3. Step 3: Cross multiply
    201,012,507.60x = 301,518,761.40 × 71,766,056.40
  4. Step 4: Simplify right side
    201,012,507.60x = 21,638,812,436,290,544
  5. Step 5: Solve for x
    x = 21,638,812,436,290,544/201,012,507.60
  6. Step 6: Final answer
    x = 107,649,084.60

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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.