Home / 28,340,314.20-42,447,485.70-21,929,779.80

Finding the Fourth Proportional to 28,340,314.20, 42,447,485.70 and 21,929,779.80

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Solution

The fourth proportional to 28,340,314.20, 42,447,485.70 and 21,929,779.80 is: 32,845,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340,314.20 : 42,447,485.70 = 21,929,779.80 : x
  2. Step 2: Convert to fraction form
    28,340,314.20/42,447,485.70 = 21,929,779.80/x
  3. Step 3: Cross multiply
    28,340,314.20x = 42,447,485.70 × 21,929,779.80
  4. Step 4: Simplify right side
    28,340,314.20x = 930,864,014,464,649
  5. Step 5: Solve for x
    x = 930,864,014,464,649/28,340,314.20
  6. Step 6: Final answer
    x = 32,845,931.34

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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.