Home / 90,889,238.96-125,428,146.72-49,637,345.12

Finding the Fourth Proportional to 90,889,238.96, 125,428,146.72 and 49,637,345.12

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Solution

The fourth proportional to 90,889,238.96, 125,428,146.72 and 49,637,345.12 is: 68,500,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,889,238.96 : 125,428,146.72 = 49,637,345.12 : x
  2. Step 2: Convert to fraction form
    90,889,238.96/125,428,146.72 = 49,637,345.12/x
  3. Step 3: Cross multiply
    90,889,238.96x = 125,428,146.72 × 49,637,345.12
  4. Step 4: Simplify right side
    90,889,238.96x = 6,225,920,206,502,636
  5. Step 5: Solve for x
    x = 6,225,920,206,502,636/90,889,238.96
  6. Step 6: Final answer
    x = 68,500,080.73

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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.