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Finding the Fourth Proportional to 149,771,663.20, 210,133,824.80 and 149,771,663.20

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Solution

The fourth proportional to 149,771,663.20, 210,133,824.80 and 149,771,663.20 is: 210,133,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,771,663.20 : 210,133,824.80 = 149,771,663.20 : x
  2. Step 2: Convert to fraction form
    149,771,663.20/210,133,824.80 = 149,771,663.20/x
  3. Step 3: Cross multiply
    149,771,663.20x = 210,133,824.80 × 149,771,663.20
  4. Step 4: Simplify right side
    149,771,663.20x = 31,472,092,434,873,408
  5. Step 5: Solve for x
    x = 31,472,092,434,873,408/149,771,663.20
  6. Step 6: Final answer
    x = 210,133,824.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.