Home / 232,590,677.58-320,977,287.63-128,172,485.70

Finding the Fourth Proportional to 232,590,677.58, 320,977,287.63 and 128,172,485.70

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Solution

The fourth proportional to 232,590,677.58, 320,977,287.63 and 128,172,485.70 is: 176,879,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,677.58 : 320,977,287.63 = 128,172,485.70 : x
  2. Step 2: Convert to fraction form
    232,590,677.58/320,977,287.63 = 128,172,485.70/x
  3. Step 3: Cross multiply
    232,590,677.58x = 320,977,287.63 × 128,172,485.70
  4. Step 4: Simplify right side
    232,590,677.58x = 41,140,456,808,780,960
  5. Step 5: Solve for x
    x = 41,140,456,808,780,960/232,590,677.58
  6. Step 6: Final answer
    x = 176,879,216.47

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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.