Home / 651,925,018.20-977,887,527.30-215,293,092.60

Finding the Fourth Proportional to 651,925,018.20, 977,887,527.30 and 215,293,092.60

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Solution

The fourth proportional to 651,925,018.20, 977,887,527.30 and 215,293,092.60 is: 322,939,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,925,018.20 : 977,887,527.30 = 215,293,092.60 : x
  2. Step 2: Convert to fraction form
    651,925,018.20/977,887,527.30 = 215,293,092.60/x
  3. Step 3: Cross multiply
    651,925,018.20x = 977,887,527.30 × 215,293,092.60
  4. Step 4: Simplify right side
    651,925,018.20x = 210,532,429,967,383,904
  5. Step 5: Solve for x
    x = 210,532,429,967,383,904/651,925,018.20
  6. Step 6: Final answer
    x = 322,939,638.90

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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.