Home / 28,963,478.80-43,445,218.20-18,885,782.80

Finding the Fourth Proportional to 28,963,478.80, 43,445,218.20 and 18,885,782.80

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Solution

The fourth proportional to 28,963,478.80, 43,445,218.20 and 18,885,782.80 is: 28,328,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,963,478.80 : 43,445,218.20 = 18,885,782.80 : x
  2. Step 2: Convert to fraction form
    28,963,478.80/43,445,218.20 = 18,885,782.80/x
  3. Step 3: Cross multiply
    28,963,478.80x = 43,445,218.20 × 18,885,782.80
  4. Step 4: Simplify right side
    28,963,478.80x = 820,496,954,623,807
  5. Step 5: Solve for x
    x = 820,496,954,623,807/28,963,478.80
  6. Step 6: Final answer
    x = 28,328,674.20

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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.