Home / 85,202,426.40-127,803,639.60-74,679,894.60

Finding the Fourth Proportional to 85,202,426.40, 127,803,639.60 and 74,679,894.60

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Solution

The fourth proportional to 85,202,426.40, 127,803,639.60 and 74,679,894.60 is: 112,019,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,426.40 : 127,803,639.60 = 74,679,894.60 : x
  2. Step 2: Convert to fraction form
    85,202,426.40/127,803,639.60 = 74,679,894.60/x
  3. Step 3: Cross multiply
    85,202,426.40x = 127,803,639.60 × 74,679,894.60
  4. Step 4: Simplify right side
    85,202,426.40x = 9,544,362,334,824,384
  5. Step 5: Solve for x
    x = 9,544,362,334,824,384/85,202,426.40
  6. Step 6: Final answer
    x = 112,019,841.90

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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.