Home / 85,208,530.80-127,812,796.20-57,998,751.60

Finding the Fourth Proportional to 85,208,530.80, 127,812,796.20 and 57,998,751.60

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Solution

The fourth proportional to 85,208,530.80, 127,812,796.20 and 57,998,751.60 is: 86,998,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208,530.80 : 127,812,796.20 = 57,998,751.60 : x
  2. Step 2: Convert to fraction form
    85,208,530.80/127,812,796.20 = 57,998,751.60/x
  3. Step 3: Cross multiply
    85,208,530.80x = 127,812,796.20 × 57,998,751.60
  4. Step 4: Simplify right side
    85,208,530.80x = 7,412,982,618,105,224
  5. Step 5: Solve for x
    x = 7,412,982,618,105,224/85,208,530.80
  6. Step 6: Final answer
    x = 86,998,127.40

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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.