Home / 390,672,564.48-586,062,566.64-145,008,325.44

Finding the Fourth Proportional to 390,672,564.48, 586,062,566.64 and 145,008,325.44

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Solution

The fourth proportional to 390,672,564.48, 586,062,566.64 and 145,008,325.44 is: 217,532,427.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,672,564.48 : 586,062,566.64 = 145,008,325.44 : x
  2. Step 2: Convert to fraction form
    390,672,564.48/586,062,566.64 = 145,008,325.44/x
  3. Step 3: Cross multiply
    390,672,564.48x = 586,062,566.64 × 145,008,325.44
  4. Step 4: Simplify right side
    390,672,564.48x = 84,983,951,391,534,800
  5. Step 5: Solve for x
    x = 84,983,951,391,534,800/390,672,564.48
  6. Step 6: Final answer
    x = 217,532,427.71

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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.