Home / 120,831,809.80-181,247,714.70-74,915,307.40

Finding the Fourth Proportional to 120,831,809.80, 181,247,714.70 and 74,915,307.40

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Solution

The fourth proportional to 120,831,809.80, 181,247,714.70 and 74,915,307.40 is: 112,372,961.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,831,809.80 : 181,247,714.70 = 74,915,307.40 : x
  2. Step 2: Convert to fraction form
    120,831,809.80/181,247,714.70 = 74,915,307.40/x
  3. Step 3: Cross multiply
    120,831,809.80x = 181,247,714.70 × 74,915,307.40
  4. Step 4: Simplify right side
    120,831,809.80x = 13,578,228,262,297,998
  5. Step 5: Solve for x
    x = 13,578,228,262,297,998/120,831,809.80
  6. Step 6: Final answer
    x = 112,372,961.10

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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.