Home / 232,590,598.86-320,977,178.78-128,172,406.78

Finding the Fourth Proportional to 232,590,598.86, 320,977,178.78 and 128,172,406.78

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Solution

The fourth proportional to 232,590,598.86, 320,977,178.78 and 128,172,406.78 is: 176,879,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,598.86 : 320,977,178.78 = 128,172,406.78 : x
  2. Step 2: Convert to fraction form
    232,590,598.86/320,977,178.78 = 128,172,406.78/x
  3. Step 3: Cross multiply
    232,590,598.86x = 320,977,178.78 × 128,172,406.78
  4. Step 4: Simplify right side
    232,590,598.86x = 41,140,417,525,686,944
  5. Step 5: Solve for x
    x = 41,140,417,525,686,944/232,590,598.86
  6. Step 6: Final answer
    x = 176,879,107.44

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1.5x scale

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.