Home / 258,959,263.16-388,177,103.54-111,502,986.11

Finding the Fourth Proportional to 258,959,263.16, 388,177,103.54 and 111,502,986.11

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Solution

The fourth proportional to 258,959,263.16, 388,177,103.54 and 111,502,986.11 is: 167,141,756.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,959,263.16 : 388,177,103.54 = 111,502,986.11 : x
  2. Step 2: Convert to fraction form
    258,959,263.16/388,177,103.54 = 111,502,986.11/x
  3. Step 3: Cross multiply
    258,959,263.16x = 388,177,103.54 × 111,502,986.11
  4. Step 4: Simplify right side
    258,959,263.16x = 43,282,906,182,578,528
  5. Step 5: Solve for x
    x = 43,282,906,182,578,528/258,959,263.16
  6. Step 6: Final answer
    x = 167,141,756.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.