Home / 186,821,782.86-257,814,050.51-100,892,314.63

Finding the Fourth Proportional to 186,821,782.86, 257,814,050.51 and 100,892,314.63

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Solution

The fourth proportional to 186,821,782.86, 257,814,050.51 and 100,892,314.63 is: 139,231,388.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821,782.86 : 257,814,050.51 = 100,892,314.63 : x
  2. Step 2: Convert to fraction form
    186,821,782.86/257,814,050.51 = 100,892,314.63/x
  3. Step 3: Cross multiply
    186,821,782.86x = 257,814,050.51 × 100,892,314.63
  4. Step 4: Simplify right side
    186,821,782.86x = 26,011,456,300,664,128
  5. Step 5: Solve for x
    x = 26,011,456,300,664,128/186,821,782.86
  6. Step 6: Final answer
    x = 139,231,388.88

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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.