Home / 438,048,015.20-657,072,022.80-223,057,167.20

Finding the Fourth Proportional to 438,048,015.20, 657,072,022.80 and 223,057,167.20

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Solution

The fourth proportional to 438,048,015.20, 657,072,022.80 and 223,057,167.20 is: 334,585,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,048,015.20 : 657,072,022.80 = 223,057,167.20 : x
  2. Step 2: Convert to fraction form
    438,048,015.20/657,072,022.80 = 223,057,167.20/x
  3. Step 3: Cross multiply
    438,048,015.20x = 657,072,022.80 × 223,057,167.20
  4. Step 4: Simplify right side
    438,048,015.20x = 146,564,624,052,141,792
  5. Step 5: Solve for x
    x = 146,564,624,052,141,792/438,048,015.20
  6. Step 6: Final answer
    x = 334,585,750.80

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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.