Home / 5,130,785.77-7,080,484.92-2,807,678.78

Finding the Fourth Proportional to 5,130,785.77, 7,080,484.92 and 2,807,678.78

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Solution

The fourth proportional to 5,130,785.77, 7,080,484.92 and 2,807,678.78 is: 3,874,597.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,785.77 : 7,080,484.92 = 2,807,678.78 : x
  2. Step 2: Convert to fraction form
    5,130,785.77/7,080,484.92 = 2,807,678.78/x
  3. Step 3: Cross multiply
    5,130,785.77x = 7,080,484.92 × 2,807,678.78
  4. Step 4: Simplify right side
    5,130,785.77x = 19,879,727,261,994.00
  5. Step 5: Solve for x
    x = 19,879,727,261,994.00/5,130,785.77
  6. Step 6: Final answer
    x = 3,874,597.02

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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.