Home / 28,210,005.40-42,315,008.10-26,509,394.20

Finding the Fourth Proportional to 28,210,005.40, 42,315,008.10 and 26,509,394.20

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Solution

The fourth proportional to 28,210,005.40, 42,315,008.10 and 26,509,394.20 is: 39,764,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210,005.40 : 42,315,008.10 = 26,509,394.20 : x
  2. Step 2: Convert to fraction form
    28,210,005.40/42,315,008.10 = 26,509,394.20/x
  3. Step 3: Cross multiply
    28,210,005.40x = 42,315,008.10 × 26,509,394.20
  4. Step 4: Simplify right side
    28,210,005.40x = 1,121,745,230,299,093
  5. Step 5: Solve for x
    x = 1,121,745,230,299,093/28,210,005.40
  6. Step 6: Final answer
    x = 39,764,091.30

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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.