Home / 127,091,948.40-190,670,399.55-40,831,200.90

Finding the Fourth Proportional to 127,091,948.40, 190,670,399.55 and 40,831,200.90

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Solution

The fourth proportional to 127,091,948.40, 190,670,399.55 and 40,831,200.90 is: 61,257,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,091,948.40 : 190,670,399.55 = 40,831,200.90 : x
  2. Step 2: Convert to fraction form
    127,091,948.40/190,670,399.55 = 40,831,200.90/x
  3. Step 3: Cross multiply
    127,091,948.40x = 190,670,399.55 × 40,831,200.90
  4. Step 4: Simplify right side
    127,091,948.40x = 7,785,301,389,709,320
  5. Step 5: Solve for x
    x = 7,785,301,389,709,320/127,091,948.40
  6. Step 6: Final answer
    x = 61,257,235.31

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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.