Home / 109,131,445.60-163,697,168.40-65,978,436.40

Finding the Fourth Proportional to 109,131,445.60, 163,697,168.40 and 65,978,436.40

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Solution

The fourth proportional to 109,131,445.60, 163,697,168.40 and 65,978,436.40 is: 98,967,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,131,445.60 : 163,697,168.40 = 65,978,436.40 : x
  2. Step 2: Convert to fraction form
    109,131,445.60/163,697,168.40 = 65,978,436.40/x
  3. Step 3: Cross multiply
    109,131,445.60x = 163,697,168.40 × 65,978,436.40
  4. Step 4: Simplify right side
    109,131,445.60x = 10,800,483,214,139,490
  5. Step 5: Solve for x
    x = 10,800,483,214,139,490/109,131,445.60
  6. Step 6: Final answer
    x = 98,967,654.60

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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.