Home / 19,931,979.80-29,897,969.70-10,838,433.80

Finding the Fourth Proportional to 19,931,979.80, 29,897,969.70 and 10,838,433.80

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Solution

The fourth proportional to 19,931,979.80, 29,897,969.70 and 10,838,433.80 is: 16,257,650.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,979.80 : 29,897,969.70 = 10,838,433.80 : x
  2. Step 2: Convert to fraction form
    19,931,979.80/29,897,969.70 = 10,838,433.80/x
  3. Step 3: Cross multiply
    19,931,979.80x = 29,897,969.70 × 10,838,433.80
  4. Step 4: Simplify right side
    19,931,979.80x = 324,047,165,347,855.88
  5. Step 5: Solve for x
    x = 324,047,165,347,855.88/19,931,979.80
  6. Step 6: Final answer
    x = 16,257,650.70

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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.