Home / 19,139,612.10-28,709,418.15-18,887,669.70

Finding the Fourth Proportional to 19,139,612.10, 28,709,418.15 and 18,887,669.70

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Solution

The fourth proportional to 19,139,612.10, 28,709,418.15 and 18,887,669.70 is: 28,331,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139,612.10 : 28,709,418.15 = 18,887,669.70 : x
  2. Step 2: Convert to fraction form
    19,139,612.10/28,709,418.15 = 18,887,669.70/x
  3. Step 3: Cross multiply
    19,139,612.10x = 28,709,418.15 × 18,887,669.70
  4. Step 4: Simplify right side
    19,139,612.10x = 542,254,007,296,385
  5. Step 5: Solve for x
    x = 542,254,007,296,385/19,139,612.10
  6. Step 6: Final answer
    x = 28,331,504.55

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1.5x scale

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.