Home / 445,799,173.60-668,698,760.40-239,174,912.80

Finding the Fourth Proportional to 445,799,173.60, 668,698,760.40 and 239,174,912.80

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Solution

The fourth proportional to 445,799,173.60, 668,698,760.40 and 239,174,912.80 is: 358,762,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,799,173.60 : 668,698,760.40 = 239,174,912.80 : x
  2. Step 2: Convert to fraction form
    445,799,173.60/668,698,760.40 = 239,174,912.80/x
  3. Step 3: Cross multiply
    445,799,173.60x = 668,698,760.40 × 239,174,912.80
  4. Step 4: Simplify right side
    445,799,173.60x = 159,935,967,708,138,080
  5. Step 5: Solve for x
    x = 159,935,967,708,138,080/445,799,173.60
  6. Step 6: Final answer
    x = 358,762,369.20

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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.