Home / 85,202,362.40-127,803,543.60-74,679,830.60

Finding the Fourth Proportional to 85,202,362.40, 127,803,543.60 and 74,679,830.60

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Solution

The fourth proportional to 85,202,362.40, 127,803,543.60 and 74,679,830.60 is: 112,019,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,362.40 : 127,803,543.60 = 74,679,830.60 : x
  2. Step 2: Convert to fraction form
    85,202,362.40/127,803,543.60 = 74,679,830.60/x
  3. Step 3: Cross multiply
    85,202,362.40x = 127,803,543.60 × 74,679,830.60
  4. Step 4: Simplify right side
    85,202,362.40x = 9,544,346,986,127,712
  5. Step 5: Solve for x
    x = 9,544,346,986,127,712/85,202,362.40
  6. Step 6: Final answer
    x = 112,019,745.90

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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.