Home / 186,821,783.86-257,814,051.89-100,892,315.63

Finding the Fourth Proportional to 186,821,783.86, 257,814,051.89 and 100,892,315.63

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Solution

The fourth proportional to 186,821,783.86, 257,814,051.89 and 100,892,315.63 is: 139,231,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,821,783.86 : 257,814,051.89 = 100,892,315.63 : x
  2. Step 2: Convert to fraction form
    186,821,783.86/257,814,051.89 = 100,892,315.63/x
  3. Step 3: Cross multiply
    186,821,783.86x = 257,814,051.89 × 100,892,315.63
  4. Step 4: Simplify right side
    186,821,783.86x = 26,011,456,697,135,076
  5. Step 5: Solve for x
    x = 26,011,456,697,135,076/186,821,783.86
  6. Step 6: Final answer
    x = 139,231,390.26

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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.