Home / 28,054,861.20-42,082,291.80-9,861,864.30

Finding the Fourth Proportional to 28,054,861.20, 42,082,291.80 and 9,861,864.30

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Solution

The fourth proportional to 28,054,861.20, 42,082,291.80 and 9,861,864.30 is: 14,792,796.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054,861.20 : 42,082,291.80 = 9,861,864.30 : x
  2. Step 2: Convert to fraction form
    28,054,861.20/42,082,291.80 = 9,861,864.30/x
  3. Step 3: Cross multiply
    28,054,861.20x = 42,082,291.80 × 9,861,864.30
  4. Step 4: Simplify right side
    28,054,861.20x = 415,009,851,164,602.75
  5. Step 5: Solve for x
    x = 415,009,851,164,602.75/28,054,861.20
  6. Step 6: Final answer
    x = 14,792,796.45

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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.