Home / 142,938,519.78-214,303,250.79-45,838,956.54

Finding the Fourth Proportional to 142,938,519.78, 214,303,250.79 and 45,838,956.54

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Solution

The fourth proportional to 142,938,519.78, 214,303,250.79 and 45,838,956.54 is: 68,724,913.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938,519.78 : 214,303,250.79 = 45,838,956.54 : x
  2. Step 2: Convert to fraction form
    142,938,519.78/214,303,250.79 = 45,838,956.54/x
  3. Step 3: Cross multiply
    142,938,519.78x = 214,303,250.79 × 45,838,956.54
  4. Step 4: Simplify right side
    142,938,519.78x = 9,823,437,399,343,530
  5. Step 5: Solve for x
    x = 9,823,437,399,343,530/142,938,519.78
  6. Step 6: Final answer
    x = 68,724,913.44

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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.