Home / 12,894,137,987.70-19,341,206,981.55-11,862,181,917.30

Finding the Fourth Proportional to 12,894,137,987.70, 19,341,206,981.55 and 11,862,181,917.30

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Solution

The fourth proportional to 12,894,137,987.70, 19,341,206,981.55 and 11,862,181,917.30 is: 17,793,272,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,894,137,987.70 : 19,341,206,981.55 = 11,862,181,917.30 : x
  2. Step 2: Convert to fraction form
    12,894,137,987.70/19,341,206,981.55 = 11,862,181,917.30/x
  3. Step 3: Cross multiply
    12,894,137,987.70x = 19,341,206,981.55 × 11,862,181,917.30
  4. Step 4: Simplify right side
    12,894,137,987.70x = 229,428,915,715,298,885,632
  5. Step 5: Solve for x
    x = 229,428,915,715,298,885,632/12,894,137,987.70
  6. Step 6: Final answer
    x = 17,793,272,875.95

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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.