Home / 151,802,743.04-209,485,245.12-82,187,558.72

Finding the Fourth Proportional to 151,802,743.04, 209,485,245.12 and 82,187,558.72

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Solution

The fourth proportional to 151,802,743.04, 209,485,245.12 and 82,187,558.72 is: 113,417,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,802,743.04 : 209,485,245.12 = 82,187,558.72 : x
  2. Step 2: Convert to fraction form
    151,802,743.04/209,485,245.12 = 82,187,558.72/x
  3. Step 3: Cross multiply
    151,802,743.04x = 209,485,245.12 × 82,187,558.72
  4. Step 4: Simplify right side
    151,802,743.04x = 17,217,080,884,273,594
  5. Step 5: Solve for x
    x = 17,217,080,884,273,594/151,802,743.04
  6. Step 6: Final answer
    x = 113,417,455.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.