Home / 442,867,877.40-664,301,816.10-258,446,040.60

Finding the Fourth Proportional to 442,867,877.40, 664,301,816.10 and 258,446,040.60

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Solution

The fourth proportional to 442,867,877.40, 664,301,816.10 and 258,446,040.60 is: 387,669,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,877.40 : 664,301,816.10 = 258,446,040.60 : x
  2. Step 2: Convert to fraction form
    442,867,877.40/664,301,816.10 = 258,446,040.60/x
  3. Step 3: Cross multiply
    442,867,877.40x = 664,301,816.10 × 258,446,040.60
  4. Step 4: Simplify right side
    442,867,877.40x = 171,686,174,134,434,336
  5. Step 5: Solve for x
    x = 171,686,174,134,434,336/442,867,877.40
  6. Step 6: Final answer
    x = 387,669,060.90

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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.