Home / 12,898,472.72-19,347,071.40-4,810,818.32

Finding the Fourth Proportional to 12,898,472.72, 19,347,071.40 and 4,810,818.32

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Solution

The fourth proportional to 12,898,472.72, 19,347,071.40 and 4,810,818.32 is: 7,215,989.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898,472.72 : 19,347,071.40 = 4,810,818.32 : x
  2. Step 2: Convert to fraction form
    12,898,472.72/19,347,071.40 = 4,810,818.32/x
  3. Step 3: Cross multiply
    12,898,472.72x = 19,347,071.40 × 4,810,818.32
  4. Step 4: Simplify right side
    12,898,472.72x = 93,075,245,529,468.05
  5. Step 5: Solve for x
    x = 93,075,245,529,468.05/12,898,472.72
  6. Step 6: Final answer
    x = 7,215,989.64

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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.