Home / 651,379,940.80-977,069,911.20-220,558,436.80

Finding the Fourth Proportional to 651,379,940.80, 977,069,911.20 and 220,558,436.80

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Solution

The fourth proportional to 651,379,940.80, 977,069,911.20 and 220,558,436.80 is: 330,837,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,379,940.80 : 977,069,911.20 = 220,558,436.80 : x
  2. Step 2: Convert to fraction form
    651,379,940.80/977,069,911.20 = 220,558,436.80/x
  3. Step 3: Cross multiply
    651,379,940.80x = 977,069,911.20 × 220,558,436.80
  4. Step 4: Simplify right side
    651,379,940.80x = 215,501,012,258,586,848
  5. Step 5: Solve for x
    x = 215,501,012,258,586,848/651,379,940.80
  6. Step 6: Final answer
    x = 330,837,655.20

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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.