Home / 815,484,327.08-1,222,725,881.27-316,912,698.68

Finding the Fourth Proportional to 815,484,327.08, 1,222,725,881.27 and 316,912,698.68

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Solution

The fourth proportional to 815,484,327.08, 1,222,725,881.27 and 316,912,698.68 is: 475,174,501.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,484,327.08 : 1,222,725,881.27 = 316,912,698.68 : x
  2. Step 2: Convert to fraction form
    815,484,327.08/1,222,725,881.27 = 316,912,698.68/x
  3. Step 3: Cross multiply
    815,484,327.08x = 1,222,725,881.27 × 316,912,698.68
  4. Step 4: Simplify right side
    815,484,327.08x = 387,497,358,773,835,648
  5. Step 5: Solve for x
    x = 387,497,358,773,835,648/815,484,327.08
  6. Step 6: Final answer
    x = 475,174,501.71

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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.