Home / 5,130,785.49-7,080,484.53-2,807,678.50

Finding the Fourth Proportional to 5,130,785.49, 7,080,484.53 and 2,807,678.50

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Solution

The fourth proportional to 5,130,785.49, 7,080,484.53 and 2,807,678.50 is: 3,874,596.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,785.49 : 7,080,484.53 = 2,807,678.50 : x
  2. Step 2: Convert to fraction form
    5,130,785.49/7,080,484.53 = 2,807,678.50/x
  3. Step 3: Cross multiply
    5,130,785.49x = 7,080,484.53 × 2,807,678.50
  4. Step 4: Simplify right side
    5,130,785.49x = 19,879,724,184,463.61
  5. Step 5: Solve for x
    x = 19,879,724,184,463.61/5,130,785.49
  6. Step 6: Final answer
    x = 3,874,596.63

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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.