Home / 12,894,137,981.70-19,341,206,972.55-11,862,181,911.30

Finding the Fourth Proportional to 12,894,137,981.70, 19,341,206,972.55 and 11,862,181,911.30

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Solution

The fourth proportional to 12,894,137,981.70, 19,341,206,972.55 and 11,862,181,911.30 is: 17,793,272,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894,137,981.70 : 19,341,206,972.55 = 11,862,181,911.30 : x
  2. Step 2: Convert to fraction form
    12,894,137,981.70/19,341,206,972.55 = 11,862,181,911.30/x
  3. Step 3: Cross multiply
    12,894,137,981.70x = 19,341,206,972.55 × 11,862,181,911.30
  4. Step 4: Simplify right side
    12,894,137,981.70x = 229,428,915,492,492,017,664
  5. Step 5: Solve for x
    x = 229,428,915,492,492,017,664/12,894,137,981.70
  6. Step 6: Final answer
    x = 17,793,272,866.95

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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.