Home / 21,569,285.61-29,761,670.03-12,276,306.81

Finding the Fourth Proportional to 21,569,285.61, 29,761,670.03 and 12,276,306.81

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Solution

The fourth proportional to 21,569,285.61, 29,761,670.03 and 12,276,306.81 is: 16,939,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569,285.61 : 29,761,670.03 = 12,276,306.81 : x
  2. Step 2: Convert to fraction form
    21,569,285.61/29,761,670.03 = 12,276,306.81/x
  3. Step 3: Cross multiply
    21,569,285.61x = 29,761,670.03 × 12,276,306.81
  4. Step 4: Simplify right side
    21,569,285.61x = 365,363,392,404,880.38
  5. Step 5: Solve for x
    x = 365,363,392,404,880.38/21,569,285.61
  6. Step 6: Final answer
    x = 16,939,058.58

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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.