Home / 12,961,883.80-19,440,492.90-8,160,981.40

Finding the Fourth Proportional to 12,961,883.80, 19,440,492.90 and 8,160,981.40

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Solution

The fourth proportional to 12,961,883.80, 19,440,492.90 and 8,160,981.40 is: 12,240,003.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,883.80 : 19,440,492.90 = 8,160,981.40 : x
  2. Step 2: Convert to fraction form
    12,961,883.80/19,440,492.90 = 8,160,981.40/x
  3. Step 3: Cross multiply
    12,961,883.80x = 19,440,492.90 × 8,160,981.40
  4. Step 4: Simplify right side
    12,961,883.80x = 158,653,500,963,732.06
  5. Step 5: Solve for x
    x = 158,653,500,963,732.06/12,961,883.80
  6. Step 6: Final answer
    x = 12,240,003.34

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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.