Home / 20,371,672.51-28,112,636.39-11,079,042.58

Finding the Fourth Proportional to 20,371,672.51, 28,112,636.39 and 11,079,042.58

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Solution

The fourth proportional to 20,371,672.51, 28,112,636.39 and 11,079,042.58 is: 15,288,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371,672.51 : 28,112,636.39 = 11,079,042.58 : x
  2. Step 2: Convert to fraction form
    20,371,672.51/28,112,636.39 = 11,079,042.58/x
  3. Step 3: Cross multiply
    20,371,672.51x = 28,112,636.39 × 11,079,042.58
  4. Step 4: Simplify right side
    20,371,672.51x = 311,461,095,609,358.25
  5. Step 5: Solve for x
    x = 311,461,095,609,358.25/20,371,672.51
  6. Step 6: Final answer
    x = 15,288,931.01

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1.5x scale

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.