Home / 927,331,378.47-1,279,729,780.16-503,953,443.81

Finding the Fourth Proportional to 927,331,378.47, 1,279,729,780.16 and 503,953,443.81

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Solution

The fourth proportional to 927,331,378.47, 1,279,729,780.16 and 503,953,443.81 is: 695,462,533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,331,378.47 : 1,279,729,780.16 = 503,953,443.81 : x
  2. Step 2: Convert to fraction form
    927,331,378.47/1,279,729,780.16 = 503,953,443.81/x
  3. Step 3: Cross multiply
    927,331,378.47x = 1,279,729,780.16 × 503,953,443.81
  4. Step 4: Simplify right side
    927,331,378.47x = 644,924,229,855,326,464
  5. Step 5: Solve for x
    x = 644,924,229,855,326,464/927,331,378.47
  6. Step 6: Final answer
    x = 695,462,533.49

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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.