Home / 651,459,655.72-976,982,136.54-214,678,858.60

Finding the Fourth Proportional to 651,459,655.72, 976,982,136.54 and 214,678,858.60

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Solution

The fourth proportional to 651,459,655.72, 976,982,136.54 and 214,678,858.60 is: 321,949,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,459,655.72 : 976,982,136.54 = 214,678,858.60 : x
  2. Step 2: Convert to fraction form
    651,459,655.72/976,982,136.54 = 214,678,858.60/x
  3. Step 3: Cross multiply
    651,459,655.72x = 976,982,136.54 × 214,678,858.60
  4. Step 4: Simplify right side
    651,459,655.72x = 209,737,409,944,996,544
  5. Step 5: Solve for x
    x = 209,737,409,944,996,544/651,459,655.72
  6. Step 6: Final answer
    x = 321,949,959.76

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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.