Home / 18,752,628.93-28,109,762.15-12,688,001.43

Finding the Fourth Proportional to 18,752,628.93, 28,109,762.15 and 12,688,001.43

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Solution

The fourth proportional to 18,752,628.93, 28,109,762.15 and 12,688,001.43 is: 19,019,024.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752,628.93 : 28,109,762.15 = 12,688,001.43 : x
  2. Step 2: Convert to fraction form
    18,752,628.93/28,109,762.15 = 12,688,001.43/x
  3. Step 3: Cross multiply
    18,752,628.93x = 28,109,762.15 × 12,688,001.43
  4. Step 4: Simplify right side
    18,752,628.93x = 356,656,702,292,719.88
  5. Step 5: Solve for x
    x = 356,656,702,292,719.88/18,752,628.93
  6. Step 6: Final answer
    x = 19,019,024.14

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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.