Home / 47,921,312.80-71,881,969.20-19,188,069.40

Finding the Fourth Proportional to 47,921,312.80, 71,881,969.20 and 19,188,069.40

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Solution

The fourth proportional to 47,921,312.80, 71,881,969.20 and 19,188,069.40 is: 28,782,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,921,312.80 : 71,881,969.20 = 19,188,069.40 : x
  2. Step 2: Convert to fraction form
    47,921,312.80/71,881,969.20 = 19,188,069.40/x
  3. Step 3: Cross multiply
    47,921,312.80x = 71,881,969.20 × 19,188,069.40
  4. Step 4: Simplify right side
    47,921,312.80x = 1,379,276,213,618,262.50
  5. Step 5: Solve for x
    x = 1,379,276,213,618,262.50/47,921,312.80
  6. Step 6: Final answer
    x = 28,782,104.10

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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.