Home / 12,574,435.28-18,868,972.10-5,287,368.28

Finding the Fourth Proportional to 12,574,435.28, 18,868,972.10 and 5,287,368.28

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Solution

The fourth proportional to 12,574,435.28, 18,868,972.10 and 5,287,368.28 is: 7,934,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574,435.28 : 18,868,972.10 = 5,287,368.28 : x
  2. Step 2: Convert to fraction form
    12,574,435.28/18,868,972.10 = 5,287,368.28/x
  3. Step 3: Cross multiply
    12,574,435.28x = 18,868,972.10 × 5,287,368.28
  4. Step 4: Simplify right side
    12,574,435.28x = 99,767,204,557,745
  5. Step 5: Solve for x
    x = 99,767,204,557,745/12,574,435.28
  6. Step 6: Final answer
    x = 7,934,130.03

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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.