Home / 226,403,639.49-312,438,080.54-128,623,860.93

Finding the Fourth Proportional to 226,403,639.49, 312,438,080.54 and 128,623,860.93

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Solution

The fourth proportional to 226,403,639.49, 312,438,080.54 and 128,623,860.93 is: 177,501,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,403,639.49 : 312,438,080.54 = 128,623,860.93 : x
  2. Step 2: Convert to fraction form
    226,403,639.49/312,438,080.54 = 128,623,860.93/x
  3. Step 3: Cross multiply
    226,403,639.49x = 312,438,080.54 × 128,623,860.93
  4. Step 4: Simplify right side
    226,403,639.49x = 40,186,992,219,050,912
  5. Step 5: Solve for x
    x = 40,186,992,219,050,912/226,403,639.49
  6. Step 6: Final answer
    x = 177,501,529.17

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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.