Home / 12,791,156.90-19,196,684.91-8,927,881.94

Finding the Fourth Proportional to 12,791,156.90, 19,196,684.91 and 8,927,881.94

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Solution

The fourth proportional to 12,791,156.90, 19,196,684.91 and 8,927,881.94 is: 13,398,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,156.90 : 19,196,684.91 = 8,927,881.94 : x
  2. Step 2: Convert to fraction form
    12,791,156.90/19,196,684.91 = 8,927,881.94/x
  3. Step 3: Cross multiply
    12,791,156.90x = 19,196,684.91 × 8,927,881.94
  4. Step 4: Simplify right side
    12,791,156.90x = 171,385,736,515,859.53
  5. Step 5: Solve for x
    x = 171,385,736,515,859.53/12,791,156.90
  6. Step 6: Final answer
    x = 13,398,767.43

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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.