Home / 127,766,688.40-191,650,032.60-79,393,747.60

Finding the Fourth Proportional to 127,766,688.40, 191,650,032.60 and 79,393,747.60

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Solution

The fourth proportional to 127,766,688.40, 191,650,032.60 and 79,393,747.60 is: 119,090,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,766,688.40 : 191,650,032.60 = 79,393,747.60 : x
  2. Step 2: Convert to fraction form
    127,766,688.40/191,650,032.60 = 79,393,747.60/x
  3. Step 3: Cross multiply
    127,766,688.40x = 191,650,032.60 × 79,393,747.60
  4. Step 4: Simplify right side
    127,766,688.40x = 15,215,814,315,776,170
  5. Step 5: Solve for x
    x = 15,215,814,315,776,170/127,766,688.40
  6. Step 6: Final answer
    x = 119,090,621.40

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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.