Home / 90,763,210.08-136,145,999.88-30,178,936.08

Finding the Fourth Proportional to 90,763,210.08, 136,145,999.88 and 30,178,936.08

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Solution

The fourth proportional to 90,763,210.08, 136,145,999.88 and 30,178,936.08 is: 45,268,798.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763,210.08 : 136,145,999.88 = 30,178,936.08 : x
  2. Step 2: Convert to fraction form
    90,763,210.08/136,145,999.88 = 30,178,936.08/x
  3. Step 3: Cross multiply
    90,763,210.08x = 136,145,999.88 × 30,178,936.08
  4. Step 4: Simplify right side
    90,763,210.08x = 4,108,741,427,926,207.50
  5. Step 5: Solve for x
    x = 4,108,741,427,926,207.50/90,763,210.08
  6. Step 6: Final answer
    x = 45,268,798.05

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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.