Home / 279,936,031.40-419,904,047.10-193,771,730.60

Finding the Fourth Proportional to 279,936,031.40, 419,904,047.10 and 193,771,730.60

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Solution

The fourth proportional to 279,936,031.40, 419,904,047.10 and 193,771,730.60 is: 290,657,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,031.40 : 419,904,047.10 = 193,771,730.60 : x
  2. Step 2: Convert to fraction form
    279,936,031.40/419,904,047.10 = 193,771,730.60/x
  3. Step 3: Cross multiply
    279,936,031.40x = 419,904,047.10 × 193,771,730.60
  4. Step 4: Simplify right side
    279,936,031.40x = 81,365,533,892,510,912
  5. Step 5: Solve for x
    x = 81,365,533,892,510,912/279,936,031.40
  6. Step 6: Final answer
    x = 290,657,595.90

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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.