Home / 64,995,507.41-89,641,500.80-57,138,219.65

Finding the Fourth Proportional to 64,995,507.41, 89,641,500.80 and 57,138,219.65

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Solution

The fourth proportional to 64,995,507.41, 89,641,500.80 and 57,138,219.65 is: 78,804,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,995,507.41 : 89,641,500.80 = 57,138,219.65 : x
  2. Step 2: Convert to fraction form
    64,995,507.41/89,641,500.80 = 57,138,219.65/x
  3. Step 3: Cross multiply
    64,995,507.41x = 89,641,500.80 × 57,138,219.65
  4. Step 4: Simplify right side
    64,995,507.41x = 5,121,955,762,404,464
  5. Step 5: Solve for x
    x = 5,121,955,762,404,464/64,995,507.41
  6. Step 6: Final answer
    x = 78,804,766.16

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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.