Home / 90,618,056.62-135,994,779.08-61,402,622.78

Finding the Fourth Proportional to 90,618,056.62, 135,994,779.08 and 61,402,622.78

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Solution

The fourth proportional to 90,618,056.62, 135,994,779.08 and 61,402,622.78 is: 92,149,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,618,056.62 : 135,994,779.08 = 61,402,622.78 : x
  2. Step 2: Convert to fraction form
    90,618,056.62/135,994,779.08 = 61,402,622.78/x
  3. Step 3: Cross multiply
    90,618,056.62x = 135,994,779.08 × 61,402,622.78
  4. Step 4: Simplify right side
    90,618,056.62x = 8,350,436,119,898,676
  5. Step 5: Solve for x
    x = 8,350,436,119,898,676/90,618,056.62
  6. Step 6: Final answer
    x = 92,149,803.60

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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.