Home / 12,942,685.90-17,860,893.01-7,141,467.32

Finding the Fourth Proportional to 12,942,685.90, 17,860,893.01 and 7,141,467.32

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Solution

The fourth proportional to 12,942,685.90, 17,860,893.01 and 7,141,467.32 is: 9,855,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,685.90 : 17,860,893.01 = 7,141,467.32 : x
  2. Step 2: Convert to fraction form
    12,942,685.90/17,860,893.01 = 7,141,467.32/x
  3. Step 3: Cross multiply
    12,942,685.90x = 17,860,893.01 × 7,141,467.32
  4. Step 4: Simplify right side
    12,942,685.90x = 127,552,983,736,931.45
  5. Step 5: Solve for x
    x = 127,552,983,736,931.45/12,942,685.90
  6. Step 6: Final answer
    x = 9,855,217.43

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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.