Home / 345,629,430.47-518,444,670.62-141,157,505.72

Finding the Fourth Proportional to 345,629,430.47, 518,444,670.62 and 141,157,505.72

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Solution

The fourth proportional to 345,629,430.47, 518,444,670.62 and 141,157,505.72 is: 211,736,472.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,629,430.47 : 518,444,670.62 = 141,157,505.72 : x
  2. Step 2: Convert to fraction form
    345,629,430.47/518,444,670.62 = 141,157,505.72/x
  3. Step 3: Cross multiply
    345,629,430.47x = 518,444,670.62 × 141,157,505.72
  4. Step 4: Simplify right side
    345,629,430.47x = 73,182,356,560,195,168
  5. Step 5: Solve for x
    x = 73,182,356,560,195,168/345,629,430.47
  6. Step 6: Final answer
    x = 211,736,472.96

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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.