Home / 639,090,007.60-958,635,011.40-366,992,215.60

Finding the Fourth Proportional to 639,090,007.60, 958,635,011.40 and 366,992,215.60

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Solution

The fourth proportional to 639,090,007.60, 958,635,011.40 and 366,992,215.60 is: 550,488,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,090,007.60 : 958,635,011.40 = 366,992,215.60 : x
  2. Step 2: Convert to fraction form
    639,090,007.60/958,635,011.40 = 366,992,215.60/x
  3. Step 3: Cross multiply
    639,090,007.60x = 958,635,011.40 × 366,992,215.60
  4. Step 4: Simplify right side
    639,090,007.60x = 351,811,586,785,417,280
  5. Step 5: Solve for x
    x = 351,811,586,785,417,280/639,090,007.60
  6. Step 6: Final answer
    x = 550,488,323.40

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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.