Home / 486,347,715.79-729,566,420.65-158,824,945.45

Finding the Fourth Proportional to 486,347,715.79, 729,566,420.65 and 158,824,945.45

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Solution

The fourth proportional to 486,347,715.79, 729,566,420.65 and 158,824,945.45 is: 238,252,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,347,715.79 : 729,566,420.65 = 158,824,945.45 : x
  2. Step 2: Convert to fraction form
    486,347,715.79/729,566,420.65 = 158,824,945.45/x
  3. Step 3: Cross multiply
    486,347,715.79x = 729,566,420.65 × 158,824,945.45
  4. Step 4: Simplify right side
    486,347,715.79x = 115,873,346,958,302,752
  5. Step 5: Solve for x
    x = 115,873,346,958,302,752/486,347,715.79
  6. Step 6: Final answer
    x = 238,252,063.69

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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.