Home / 2,877,287,420.80-4,315,931,131.20-1,947,478,247.20

Finding the Fourth Proportional to 2,877,287,420.80, 4,315,931,131.20 and 1,947,478,247.20

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Solution

The fourth proportional to 2,877,287,420.80, 4,315,931,131.20 and 1,947,478,247.20 is: 2,921,217,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877,287,420.80 : 4,315,931,131.20 = 1,947,478,247.20 : x
  2. Step 2: Convert to fraction form
    2,877,287,420.80/4,315,931,131.20 = 1,947,478,247.20/x
  3. Step 3: Cross multiply
    2,877,287,420.80x = 4,315,931,131.20 × 1,947,478,247.20
  4. Step 4: Simplify right side
    2,877,287,420.80x = 8,405,181,994,425,288,704
  5. Step 5: Solve for x
    x = 8,405,181,994,425,288,704/2,877,287,420.80
  6. Step 6: Final answer
    x = 2,921,217,370.80

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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.