Home / 19,172,832.40-28,745,251.80-7,807,430.80

Finding the Fourth Proportional to 19,172,832.40, 28,745,251.80 and 7,807,430.80

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Solution

The fourth proportional to 19,172,832.40, 28,745,251.80 and 7,807,430.80 is: 11,705,446.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172,832.40 : 28,745,251.80 = 7,807,430.80 : x
  2. Step 2: Convert to fraction form
    19,172,832.40/28,745,251.80 = 7,807,430.80/x
  3. Step 3: Cross multiply
    19,172,832.40x = 28,745,251.80 × 7,807,430.80
  4. Step 4: Simplify right side
    19,172,832.40x = 224,426,564,257,075.44
  5. Step 5: Solve for x
    x = 224,426,564,257,075.44/19,172,832.40
  6. Step 6: Final answer
    x = 11,705,446.52

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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.