Home / 20,005,071,111.40-27,613,179,916.89-12,868,484,913.95

Finding the Fourth Proportional to 20,005,071,111.40, 27,613,179,916.89 and 12,868,484,913.95

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Solution

The fourth proportional to 20,005,071,111.40, 27,613,179,916.89 and 12,868,484,913.95 is: 17,762,485,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005,071,111.40 : 27,613,179,916.89 = 12,868,484,913.95 : x
  2. Step 2: Convert to fraction form
    20,005,071,111.40/27,613,179,916.89 = 12,868,484,913.95/x
  3. Step 3: Cross multiply
    20,005,071,111.40x = 27,613,179,916.89 × 12,868,484,913.95
  4. Step 4: Simplify right side
    20,005,071,111.40x = 355,339,789,186,605,121,536
  5. Step 5: Solve for x
    x = 355,339,789,186,605,121,536/20,005,071,111.40
  6. Step 6: Final answer
    x = 17,762,485,682.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.