Home / 12,146,004.30-18,219,006.45-4,955,148.30

Finding the Fourth Proportional to 12,146,004.30, 18,219,006.45 and 4,955,148.30

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Solution

The fourth proportional to 12,146,004.30, 18,219,006.45 and 4,955,148.30 is: 7,432,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146,004.30 : 18,219,006.45 = 4,955,148.30 : x
  2. Step 2: Convert to fraction form
    12,146,004.30/18,219,006.45 = 4,955,148.30/x
  3. Step 3: Cross multiply
    12,146,004.30x = 18,219,006.45 × 4,955,148.30
  4. Step 4: Simplify right side
    12,146,004.30x = 90,277,878,838,406.53
  5. Step 5: Solve for x
    x = 90,277,878,838,406.53/12,146,004.30
  6. Step 6: Final answer
    x = 7,432,722.45

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Similar ratio
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1.5x scale

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.