Home / 990,220,530.70-1,485,330,796.05-886,908,400.30

Finding the Fourth Proportional to 990,220,530.70, 1,485,330,796.05 and 886,908,400.30

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Solution

The fourth proportional to 990,220,530.70, 1,485,330,796.05 and 886,908,400.30 is: 1,330,362,600.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,220,530.70 : 1,485,330,796.05 = 886,908,400.30 : x
  2. Step 2: Convert to fraction form
    990,220,530.70/1,485,330,796.05 = 886,908,400.30/x
  3. Step 3: Cross multiply
    990,220,530.70x = 1,485,330,796.05 × 886,908,400.30
  4. Step 4: Simplify right side
    990,220,530.70x = 1,317,352,360,241,030,912
  5. Step 5: Solve for x
    x = 1,317,352,360,241,030,912/990,220,530.70
  6. Step 6: Final answer
    x = 1,330,362,600.45

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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.