Home / 55,312,345.06-76,331,301.35-30,532,081.48

Finding the Fourth Proportional to 55,312,345.06, 76,331,301.35 and 30,532,081.48

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Solution

The fourth proportional to 55,312,345.06, 76,331,301.35 and 30,532,081.48 is: 42,134,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,312,345.06 : 76,331,301.35 = 30,532,081.48 : x
  2. Step 2: Convert to fraction form
    55,312,345.06/76,331,301.35 = 30,532,081.48/x
  3. Step 3: Cross multiply
    55,312,345.06x = 76,331,301.35 × 30,532,081.48
  4. Step 4: Simplify right side
    55,312,345.06x = 2,330,553,511,949,145
  5. Step 5: Solve for x
    x = 2,330,553,511,949,145/55,312,345.06
  6. Step 6: Final answer
    x = 42,134,418.81

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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.