Home / 18,569,121,315.30-27,853,681,972.95-12,691,809,008.10

Finding the Fourth Proportional to 18,569,121,315.30, 27,853,681,972.95 and 12,691,809,008.10

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Solution

The fourth proportional to 18,569,121,315.30, 27,853,681,972.95 and 12,691,809,008.10 is: 19,037,713,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569,121,315.30 : 27,853,681,972.95 = 12,691,809,008.10 : x
  2. Step 2: Convert to fraction form
    18,569,121,315.30/27,853,681,972.95 = 12,691,809,008.10/x
  3. Step 3: Cross multiply
    18,569,121,315.30x = 27,853,681,972.95 × 12,691,809,008.10
  4. Step 4: Simplify right side
    18,569,121,315.30x = 353,513,611,773,039,411,200
  5. Step 5: Solve for x
    x = 353,513,611,773,039,411,200/18,569,121,315.30
  6. Step 6: Final answer
    x = 19,037,713,512.15

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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.