Home / 28,387,046.77-39,174,159.32-15,334,305.87

Finding the Fourth Proportional to 28,387,046.77, 39,174,159.32 and 15,334,305.87

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Solution

The fourth proportional to 28,387,046.77, 39,174,159.32 and 15,334,305.87 is: 21,161,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387,046.77 : 39,174,159.32 = 15,334,305.87 : x
  2. Step 2: Convert to fraction form
    28,387,046.77/39,174,159.32 = 15,334,305.87/x
  3. Step 3: Cross multiply
    28,387,046.77x = 39,174,159.32 × 15,334,305.87
  4. Step 4: Simplify right side
    28,387,046.77x = 600,708,541,163,491.75
  5. Step 5: Solve for x
    x = 600,708,541,163,491.75/28,387,046.77
  6. Step 6: Final answer
    x = 21,161,360.89

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1.5x scale

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.