Home / 5,090,685.72-7,024,966.80-2,798,828.78

Finding the Fourth Proportional to 5,090,685.72, 7,024,966.80 and 2,798,828.78

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Solution

The fourth proportional to 5,090,685.72, 7,024,966.80 and 2,798,828.78 is: 3,862,285.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,090,685.72 : 7,024,966.80 = 2,798,828.78 : x
  2. Step 2: Convert to fraction form
    5,090,685.72/7,024,966.80 = 2,798,828.78/x
  3. Step 3: Cross multiply
    5,090,685.72x = 7,024,966.80 × 2,798,828.78
  4. Step 4: Simplify right side
    5,090,685.72x = 19,661,679,258,384.50
  5. Step 5: Solve for x
    x = 19,661,679,258,384.50/5,090,685.72
  6. Step 6: Final answer
    x = 3,862,285.03

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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.