Home / 85,101,280.60-127,462,964.10-69,984,736.60

Finding the Fourth Proportional to 85,101,280.60, 127,462,964.10 and 69,984,736.60

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Solution

The fourth proportional to 85,101,280.60, 127,462,964.10 and 69,984,736.60 is: 104,821,712.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,101,280.60 : 127,462,964.10 = 69,984,736.60 : x
  2. Step 2: Convert to fraction form
    85,101,280.60/127,462,964.10 = 69,984,736.60/x
  3. Step 3: Cross multiply
    85,101,280.60x = 127,462,964.10 × 69,984,736.60
  4. Step 4: Simplify right side
    85,101,280.60x = 8,920,461,968,793,755
  5. Step 5: Solve for x
    x = 8,920,461,968,793,755/85,101,280.60
  6. Step 6: Final answer
    x = 104,821,712.50

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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.