Home / 13,290,128.77-19,935,826.81-6,458,563.12

Finding the Fourth Proportional to 13,290,128.77, 19,935,826.81 and 6,458,563.12

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Solution

The fourth proportional to 13,290,128.77, 19,935,826.81 and 6,458,563.12 is: 9,688,152.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,128.77 : 19,935,826.81 = 6,458,563.12 : x
  2. Step 2: Convert to fraction form
    13,290,128.77/19,935,826.81 = 6,458,563.12/x
  3. Step 3: Cross multiply
    13,290,128.77x = 19,935,826.81 × 6,458,563.12
  4. Step 4: Simplify right side
    13,290,128.77x = 128,756,795,735,787.27
  5. Step 5: Solve for x
    x = 128,756,795,735,787.27/13,290,128.77
  6. Step 6: Final answer
    x = 9,688,152.61

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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.