Home / 31,354,848.90-47,013,968.16-12,163,180.32

Finding the Fourth Proportional to 31,354,848.90, 47,013,968.16 and 12,163,180.32

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Solution

The fourth proportional to 31,354,848.90, 47,013,968.16 and 12,163,180.32 is: 18,237,669.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,354,848.90 : 47,013,968.16 = 12,163,180.32 : x
  2. Step 2: Convert to fraction form
    31,354,848.90/47,013,968.16 = 12,163,180.32/x
  3. Step 3: Cross multiply
    31,354,848.90x = 47,013,968.16 × 12,163,180.32
  4. Step 4: Simplify right side
    31,354,848.90x = 571,839,372,288,818.62
  5. Step 5: Solve for x
    x = 571,839,372,288,818.62/31,354,848.90
  6. Step 6: Final answer
    x = 18,237,669.53

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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.