Home / 28,423,963.40-39,237,879.22-18,124,530.44

Finding the Fourth Proportional to 28,423,963.40, 39,237,879.22 and 18,124,530.44

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Solution

The fourth proportional to 28,423,963.40, 39,237,879.22 and 18,124,530.44 is: 25,020,020.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423,963.40 : 39,237,879.22 = 18,124,530.44 : x
  2. Step 2: Convert to fraction form
    28,423,963.40/39,237,879.22 = 18,124,530.44/x
  3. Step 3: Cross multiply
    28,423,963.40x = 39,237,879.22 × 18,124,530.44
  4. Step 4: Simplify right side
    28,423,963.40x = 711,168,136,323,933.50
  5. Step 5: Solve for x
    x = 711,168,136,323,933.50/28,423,963.40
  6. Step 6: Final answer
    x = 25,020,020.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.