Home / 21,652,678.47-29,880,695.63-11,863,493.54

Finding the Fourth Proportional to 21,652,678.47, 29,880,695.63 and 11,863,493.54

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Solution

The fourth proportional to 21,652,678.47, 29,880,695.63 and 11,863,493.54 is: 16,371,620.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,652,678.47 : 29,880,695.63 = 11,863,493.54 : x
  2. Step 2: Convert to fraction form
    21,652,678.47/29,880,695.63 = 11,863,493.54/x
  3. Step 3: Cross multiply
    21,652,678.47x = 29,880,695.63 × 11,863,493.54
  4. Step 4: Simplify right side
    21,652,678.47x = 354,489,439,457,466.50
  5. Step 5: Solve for x
    x = 354,489,439,457,466.50/21,652,678.47
  6. Step 6: Final answer
    x = 16,371,620.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.