Home / 651,925,171.20-977,887,756.80-215,293,245.60

Finding the Fourth Proportional to 651,925,171.20, 977,887,756.80 and 215,293,245.60

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Solution

The fourth proportional to 651,925,171.20, 977,887,756.80 and 215,293,245.60 is: 322,939,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,925,171.20 : 977,887,756.80 = 215,293,245.60 : x
  2. Step 2: Convert to fraction form
    651,925,171.20/977,887,756.80 = 215,293,245.60/x
  3. Step 3: Cross multiply
    651,925,171.20x = 977,887,756.80 × 215,293,245.60
  4. Step 4: Simplify right side
    651,925,171.20x = 210,532,628,993,975,456
  5. Step 5: Solve for x
    x = 210,532,628,993,975,456/651,925,171.20
  6. Step 6: Final answer
    x = 322,939,868.40

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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.