Home / 689,807,841,291.75-1,034,748,303,816-212,604,901,961.46

Finding the Fourth Proportional to 689,807,841,291.75, 1,034,748,303,816 and 212,604,901,961.46

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Solution

The fourth proportional to 689,807,841,291.75, 1,034,748,303,816 and 212,604,901,961.46 is: 318,918,615,473.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,807,841,291.75 : 1,034,748,303,816 = 212,604,901,961.46 : x
  2. Step 2: Convert to fraction form
    689,807,841,291.75/1,034,748,303,816 = 212,604,901,961.46/x
  3. Step 3: Cross multiply
    689,807,841,291.75x = 1,034,748,303,816 × 212,604,901,961.46
  4. Step 4: Simplify right side
    689,807,841,291.75x = 219,992,561,687,587,700,342,784
  5. Step 5: Solve for x
    x = 219,992,561,687,587,700,342,784/689,807,841,291.75
  6. Step 6: Final answer
    x = 318,918,615,473.59

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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.