Home / 133,139,321.79-183,732,513.73-74,401,987.22

Finding the Fourth Proportional to 133,139,321.79, 183,732,513.73 and 74,401,987.22

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Solution

The fourth proportional to 133,139,321.79, 183,732,513.73 and 74,401,987.22 is: 102,674,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,139,321.79 : 183,732,513.73 = 74,401,987.22 : x
  2. Step 2: Convert to fraction form
    133,139,321.79/183,732,513.73 = 74,401,987.22/x
  3. Step 3: Cross multiply
    133,139,321.79x = 183,732,513.73 × 74,401,987.22
  4. Step 4: Simplify right side
    133,139,321.79x = 13,670,064,138,437,934
  5. Step 5: Solve for x
    x = 13,670,064,138,437,934/133,139,321.79
  6. Step 6: Final answer
    x = 102,674,881.88

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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.