Home / 21,323,271.80-31,984,907.70-12,253,345.40

Finding the Fourth Proportional to 21,323,271.80, 31,984,907.70 and 12,253,345.40

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Solution

The fourth proportional to 21,323,271.80, 31,984,907.70 and 12,253,345.40 is: 18,380,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323,271.80 : 31,984,907.70 = 12,253,345.40 : x
  2. Step 2: Convert to fraction form
    21,323,271.80/31,984,907.70 = 12,253,345.40/x
  3. Step 3: Cross multiply
    21,323,271.80x = 31,984,907.70 × 12,253,345.40
  4. Step 4: Simplify right side
    21,323,271.80x = 391,922,121,635,219.56
  5. Step 5: Solve for x
    x = 391,922,121,635,219.56/21,323,271.80
  6. Step 6: Final answer
    x = 18,380,018.10

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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.