Home / 312,299,786.16-430,974,826.92-173,072,916.72

Finding the Fourth Proportional to 312,299,786.16, 430,974,826.92 and 173,072,916.72

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Solution

The fourth proportional to 312,299,786.16, 430,974,826.92 and 173,072,916.72 is: 238,841,246.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,299,786.16 : 430,974,826.92 = 173,072,916.72 : x
  2. Step 2: Convert to fraction form
    312,299,786.16/430,974,826.92 = 173,072,916.72/x
  3. Step 3: Cross multiply
    312,299,786.16x = 430,974,826.92 × 173,072,916.72
  4. Step 4: Simplify right side
    312,299,786.16x = 74,590,070,327,941,584
  5. Step 5: Solve for x
    x = 74,590,070,327,941,584/312,299,786.16
  6. Step 6: Final answer
    x = 238,841,246.88

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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.