Home / 14,317,490-19,758,139.44-7,878,962

Finding the Fourth Proportional to 14,317,490, 19,758,139.44 and 7,878,962

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Solution

The fourth proportional to 14,317,490, 19,758,139.44 and 7,878,962 is: 10,872,969.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,317,490 : 19,758,139.44 = 7,878,962 : x
  2. Step 2: Convert to fraction form
    14,317,490/19,758,139.44 = 7,878,962/x
  3. Step 3: Cross multiply
    14,317,490x = 19,758,139.44 × 7,878,962
  4. Step 4: Simplify right side
    14,317,490x = 155,673,629,838,461.28
  5. Step 5: Solve for x
    x = 155,673,629,838,461.28/14,317,490
  6. Step 6: Final answer
    x = 10,872,969.34

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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.