Home / 90,276,764.09-124,579,826.41-53,109,437.51

Finding the Fourth Proportional to 90,276,764.09, 124,579,826.41 and 53,109,437.51

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Solution

The fourth proportional to 90,276,764.09, 124,579,826.41 and 53,109,437.51 is: 73,289,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276,764.09 : 124,579,826.41 = 53,109,437.51 : x
  2. Step 2: Convert to fraction form
    90,276,764.09/124,579,826.41 = 53,109,437.51/x
  3. Step 3: Cross multiply
    90,276,764.09x = 124,579,826.41 × 53,109,437.51
  4. Step 4: Simplify right side
    90,276,764.09x = 6,616,364,505,728,542
  5. Step 5: Solve for x
    x = 6,616,364,505,728,542/90,276,764.09
  6. Step 6: Final answer
    x = 73,289,783.62

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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.