Home / 2,877,287,419.80-4,315,931,129.70-1,947,478,246.20

Finding the Fourth Proportional to 2,877,287,419.80, 4,315,931,129.70 and 1,947,478,246.20

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Solution

The fourth proportional to 2,877,287,419.80, 4,315,931,129.70 and 1,947,478,246.20 is: 2,921,217,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877,287,419.80 : 4,315,931,129.70 = 1,947,478,246.20 : x
  2. Step 2: Convert to fraction form
    2,877,287,419.80/4,315,931,129.70 = 1,947,478,246.20/x
  3. Step 3: Cross multiply
    2,877,287,419.80x = 4,315,931,129.70 × 1,947,478,246.20
  4. Step 4: Simplify right side
    2,877,287,419.80x = 8,405,181,987,188,141,056
  5. Step 5: Solve for x
    x = 8,405,181,987,188,141,056/2,877,287,419.80
  6. Step 6: Final answer
    x = 2,921,217,369.30

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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.