Home / 12,963,211.32-17,889,419.30-7,162,126.60

Finding the Fourth Proportional to 12,963,211.32, 17,889,419.30 and 7,162,126.60

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Solution

The fourth proportional to 12,963,211.32, 17,889,419.30 and 7,162,126.60 is: 9,883,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,211.32 : 17,889,419.30 = 7,162,126.60 : x
  2. Step 2: Convert to fraction form
    12,963,211.32/17,889,419.30 = 7,162,126.60/x
  3. Step 3: Cross multiply
    12,963,211.32x = 17,889,419.30 × 7,162,126.60
  4. Step 4: Simplify right side
    12,963,211.32x = 128,126,285,827,083.38
  5. Step 5: Solve for x
    x = 128,126,285,827,083.38/12,963,211.32
  6. Step 6: Final answer
    x = 9,883,838.40

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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.