Home / 407,899,312.20-611,784,014.40-135,270,079.20

Finding the Fourth Proportional to 407,899,312.20, 611,784,014.40 and 135,270,079.20

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Solution

The fourth proportional to 407,899,312.20, 611,784,014.40 and 135,270,079.20 is: 202,883,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,899,312.20 : 611,784,014.40 = 135,270,079.20 : x
  2. Step 2: Convert to fraction form
    407,899,312.20/611,784,014.40 = 135,270,079.20/x
  3. Step 3: Cross multiply
    407,899,312.20x = 611,784,014.40 × 135,270,079.20
  4. Step 4: Simplify right side
    407,899,312.20x = 82,756,072,081,181,936
  5. Step 5: Solve for x
    x = 82,756,072,081,181,936/407,899,312.20
  6. Step 6: Final answer
    x = 202,883,578.39

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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.