Home / 85,964,140.80-128,946,211.20-58,754,361.60

Finding the Fourth Proportional to 85,964,140.80, 128,946,211.20 and 58,754,361.60

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Solution

The fourth proportional to 85,964,140.80, 128,946,211.20 and 58,754,361.60 is: 88,131,542.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,964,140.80 : 128,946,211.20 = 58,754,361.60 : x
  2. Step 2: Convert to fraction form
    85,964,140.80/128,946,211.20 = 58,754,361.60/x
  3. Step 3: Cross multiply
    85,964,140.80x = 128,946,211.20 × 58,754,361.60
  4. Step 4: Simplify right side
    85,964,140.80x = 7,576,152,319,794,770
  5. Step 5: Solve for x
    x = 7,576,152,319,794,770/85,964,140.80
  6. Step 6: Final answer
    x = 88,131,542.40

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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.