Home / 66,490,233.40-99,809,999.70-51,411,014.20

Finding the Fourth Proportional to 66,490,233.40, 99,809,999.70 and 51,411,014.20

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Solution

The fourth proportional to 66,490,233.40, 99,809,999.70 and 51,411,014.20 is: 77,174,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490,233.40 : 99,809,999.70 = 51,411,014.20 : x
  2. Step 2: Convert to fraction form
    66,490,233.40/99,809,999.70 = 51,411,014.20/x
  3. Step 3: Cross multiply
    66,490,233.40x = 99,809,999.70 × 51,411,014.20
  4. Step 4: Simplify right side
    66,490,233.40x = 5,131,333,311,878,696
  5. Step 5: Solve for x
    x = 5,131,333,311,878,696/66,490,233.40
  6. Step 6: Final answer
    x = 77,174,241.23

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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.