Home / 21,217,930.83-31,827,118.59-16,985,006.91

Finding the Fourth Proportional to 21,217,930.83, 31,827,118.59 and 16,985,006.91

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Solution

The fourth proportional to 21,217,930.83, 31,827,118.59 and 16,985,006.91 is: 25,477,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,930.83 : 31,827,118.59 = 16,985,006.91 : x
  2. Step 2: Convert to fraction form
    21,217,930.83/31,827,118.59 = 16,985,006.91/x
  3. Step 3: Cross multiply
    21,217,930.83x = 31,827,118.59 × 16,985,006.91
  4. Step 4: Simplify right side
    21,217,930.83x = 540,583,829,176,539.44
  5. Step 5: Solve for x
    x = 540,583,829,176,539.44/21,217,930.83
  6. Step 6: Final answer
    x = 25,477,688.35

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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.