Home / 430,195,891.20-645,293,836.80-354,613,171.20

Finding the Fourth Proportional to 430,195,891.20, 645,293,836.80 and 354,613,171.20

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Solution

The fourth proportional to 430,195,891.20, 645,293,836.80 and 354,613,171.20 is: 531,919,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,195,891.20 : 645,293,836.80 = 354,613,171.20 : x
  2. Step 2: Convert to fraction form
    430,195,891.20/645,293,836.80 = 354,613,171.20/x
  3. Step 3: Cross multiply
    430,195,891.20x = 645,293,836.80 × 354,613,171.20
  4. Step 4: Simplify right side
    430,195,891.20x = 228,829,693,823,463,232
  5. Step 5: Solve for x
    x = 228,829,693,823,463,232/430,195,891.20
  6. Step 6: Final answer
    x = 531,919,756.80

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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.