Home / 20,392,203.57-28,137,948.17-11,688,774.63

Finding the Fourth Proportional to 20,392,203.57, 28,137,948.17 and 11,688,774.63

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Solution

The fourth proportional to 20,392,203.57, 28,137,948.17 and 11,688,774.63 is: 16,128,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,203.57 : 28,137,948.17 = 11,688,774.63 : x
  2. Step 2: Convert to fraction form
    20,392,203.57/28,137,948.17 = 11,688,774.63/x
  3. Step 3: Cross multiply
    20,392,203.57x = 28,137,948.17 × 11,688,774.63
  4. Step 4: Simplify right side
    20,392,203.57x = 328,898,134,709,751
  5. Step 5: Solve for x
    x = 328,898,134,709,751/20,392,203.57
  6. Step 6: Final answer
    x = 16,128,621.59

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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.