Home / 123,926,911.61-171,018,192.33-68,171,131.45

Finding the Fourth Proportional to 123,926,911.61, 171,018,192.33 and 68,171,131.45

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Solution

The fourth proportional to 123,926,911.61, 171,018,192.33 and 68,171,131.45 is: 94,075,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,926,911.61 : 171,018,192.33 = 68,171,131.45 : x
  2. Step 2: Convert to fraction form
    123,926,911.61/171,018,192.33 = 68,171,131.45/x
  3. Step 3: Cross multiply
    123,926,911.61x = 171,018,192.33 × 68,171,131.45
  4. Step 4: Simplify right side
    123,926,911.61x = 11,658,503,669,242,268
  5. Step 5: Solve for x
    x = 11,658,503,669,242,268/123,926,911.61
  6. Step 6: Final answer
    x = 94,075,641.18

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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.