Home / 15,369,568.56-21,210,038.46-8,400,357.72

Finding the Fourth Proportional to 15,369,568.56, 21,210,038.46 and 8,400,357.72

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Solution

The fourth proportional to 15,369,568.56, 21,210,038.46 and 8,400,357.72 is: 11,592,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,369,568.56 : 21,210,038.46 = 8,400,357.72 : x
  2. Step 2: Convert to fraction form
    15,369,568.56/21,210,038.46 = 8,400,357.72/x
  3. Step 3: Cross multiply
    15,369,568.56x = 21,210,038.46 × 8,400,357.72
  4. Step 4: Simplify right side
    15,369,568.56x = 178,171,910,318,957.94
  5. Step 5: Solve for x
    x = 178,171,910,318,957.94/15,369,568.56
  6. Step 6: Final answer
    x = 11,592,512.15

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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.