Home / 90,161,728.40-135,242,592.60-61,463,914.40

Finding the Fourth Proportional to 90,161,728.40, 135,242,592.60 and 61,463,914.40

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Solution

The fourth proportional to 90,161,728.40, 135,242,592.60 and 61,463,914.40 is: 92,195,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,161,728.40 : 135,242,592.60 = 61,463,914.40 : x
  2. Step 2: Convert to fraction form
    90,161,728.40/135,242,592.60 = 61,463,914.40/x
  3. Step 3: Cross multiply
    90,161,728.40x = 135,242,592.60 × 61,463,914.40
  4. Step 4: Simplify right side
    90,161,728.40x = 8,312,539,134,800,473
  5. Step 5: Solve for x
    x = 8,312,539,134,800,473/90,161,728.40
  6. Step 6: Final answer
    x = 92,195,871.60

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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.