Home / 64,995,455.68-89,641,429.65-57,138,167.90

Finding the Fourth Proportional to 64,995,455.68, 89,641,429.65 and 57,138,167.90

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Solution

The fourth proportional to 64,995,455.68, 89,641,429.65 and 57,138,167.90 is: 78,804,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,995,455.68 : 89,641,429.65 = 57,138,167.90 : x
  2. Step 2: Convert to fraction form
    64,995,455.68/89,641,429.65 = 57,138,167.90/x
  3. Step 3: Cross multiply
    64,995,455.68x = 89,641,429.65 × 57,138,167.90
  4. Step 4: Simplify right side
    64,995,455.68x = 5,121,947,058,361,842
  5. Step 5: Solve for x
    x = 5,121,947,058,361,842/64,995,455.68
  6. Step 6: Final answer
    x = 78,804,694.96

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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.