Home / 12,920,937.80-19,384,031.10-4,402,135.40

Finding the Fourth Proportional to 12,920,937.80, 19,384,031.10 and 4,402,135.40

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Solution

The fourth proportional to 12,920,937.80, 19,384,031.10 and 4,402,135.40 is: 6,604,097.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,937.80 : 19,384,031.10 = 4,402,135.40 : x
  2. Step 2: Convert to fraction form
    12,920,937.80/19,384,031.10 = 4,402,135.40/x
  3. Step 3: Cross multiply
    12,920,937.80x = 19,384,031.10 × 4,402,135.40
  4. Step 4: Simplify right side
    12,920,937.80x = 85,331,129,500,010.95
  5. Step 5: Solve for x
    x = 85,331,129,500,010.95/12,920,937.80
  6. Step 6: Final answer
    x = 6,604,097.23

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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.