Home / 142,938,423.78-214,303,106.79-45,838,860.54

Finding the Fourth Proportional to 142,938,423.78, 214,303,106.79 and 45,838,860.54

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Solution

The fourth proportional to 142,938,423.78, 214,303,106.79 and 45,838,860.54 is: 68,724,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,938,423.78 : 214,303,106.79 = 45,838,860.54 : x
  2. Step 2: Convert to fraction form
    142,938,423.78/214,303,106.79 = 45,838,860.54/x
  3. Step 3: Cross multiply
    142,938,423.78x = 214,303,106.79 × 45,838,860.54
  4. Step 4: Simplify right side
    142,938,423.78x = 9,823,410,225,435,536
  5. Step 5: Solve for x
    x = 9,823,410,225,435,536/142,938,423.78
  6. Step 6: Final answer
    x = 68,724,769.49

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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.