Home / 15,391,792,315.88-21,241,548,652.28-8,617,551,629.46

Finding the Fourth Proportional to 15,391,792,315.88, 21,241,548,652.28 and 8,617,551,629.46

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Solution

The fourth proportional to 15,391,792,315.88, 21,241,548,652.28 and 8,617,551,629.46 is: 11,892,711,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,792,315.88 : 21,241,548,652.28 = 8,617,551,629.46 : x
  2. Step 2: Convert to fraction form
    15,391,792,315.88/21,241,548,652.28 = 8,617,551,629.46/x
  3. Step 3: Cross multiply
    15,391,792,315.88x = 21,241,548,652.28 × 8,617,551,629.46
  4. Step 4: Simplify right side
    15,391,792,315.88x = 183,050,142,200,666,292,224
  5. Step 5: Solve for x
    x = 183,050,142,200,666,292,224/15,391,792,315.88
  6. Step 6: Final answer
    x = 11,892,711,286.90

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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.