Home / 328,544,018.70-492,784,000.65-86,206,922.70

Finding the Fourth Proportional to 328,544,018.70, 492,784,000.65 and 86,206,922.70

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Solution

The fourth proportional to 328,544,018.70, 492,784,000.65 and 86,206,922.70 is: 129,301,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,544,018.70 : 492,784,000.65 = 86,206,922.70 : x
  2. Step 2: Convert to fraction form
    328,544,018.70/492,784,000.65 = 86,206,922.70/x
  3. Step 3: Cross multiply
    328,544,018.70x = 492,784,000.65 × 86,206,922.70
  4. Step 4: Simplify right side
    328,544,018.70x = 42,481,392,251,831,296
  5. Step 5: Solve for x
    x = 42,481,392,251,831,296/328,544,018.70
  6. Step 6: Final answer
    x = 129,301,980.36

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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.