Home / 13,881,911.60-19,156,904.84-7,999,384.61

Finding the Fourth Proportional to 13,881,911.60, 19,156,904.84 and 7,999,384.61

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Solution

The fourth proportional to 13,881,911.60, 19,156,904.84 and 7,999,384.61 is: 11,039,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,881,911.60 : 19,156,904.84 = 7,999,384.61 : x
  2. Step 2: Convert to fraction form
    13,881,911.60/19,156,904.84 = 7,999,384.61/x
  3. Step 3: Cross multiply
    13,881,911.60x = 19,156,904.84 × 7,999,384.61
  4. Step 4: Simplify right side
    13,881,911.60x = 153,243,449,616,549.09
  5. Step 5: Solve for x
    x = 153,243,449,616,549.09/13,881,911.60
  6. Step 6: Final answer
    x = 11,039,074.02

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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.