Home / 7,878,633.40-11,811,389.10-3,333,172.60

Finding the Fourth Proportional to 7,878,633.40, 11,811,389.10 and 3,333,172.60

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Solution

The fourth proportional to 7,878,633.40, 11,811,389.10 and 3,333,172.60 is: 4,996,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,633.40 : 11,811,389.10 = 3,333,172.60 : x
  2. Step 2: Convert to fraction form
    7,878,633.40/11,811,389.10 = 3,333,172.60/x
  3. Step 3: Cross multiply
    7,878,633.40x = 11,811,389.10 × 3,333,172.60
  4. Step 4: Simplify right side
    7,878,633.40x = 39,369,398,516,058.66
  5. Step 5: Solve for x
    x = 39,369,398,516,058.66/7,878,633.40
  6. Step 6: Final answer
    x = 4,996,983.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.