Home / 12,745,802.90-19,100,158.58-7,877,715.86

Finding the Fourth Proportional to 12,745,802.90, 19,100,158.58 and 7,877,715.86

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Solution

The fourth proportional to 12,745,802.90, 19,100,158.58 and 7,877,715.86 is: 11,805,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,802.90 : 19,100,158.58 = 7,877,715.86 : x
  2. Step 2: Convert to fraction form
    12,745,802.90/19,100,158.58 = 7,877,715.86/x
  3. Step 3: Cross multiply
    12,745,802.90x = 19,100,158.58 × 7,877,715.86
  4. Step 4: Simplify right side
    12,745,802.90x = 150,465,622,039,291.72
  5. Step 5: Solve for x
    x = 150,465,622,039,291.72/12,745,802.90
  6. Step 6: Final answer
    x = 11,805,111.32

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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.