Home / 445,904,995.20-668,857,492.80-290,936,799.60

Finding the Fourth Proportional to 445,904,995.20, 668,857,492.80 and 290,936,799.60

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Solution

The fourth proportional to 445,904,995.20, 668,857,492.80 and 290,936,799.60 is: 436,405,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,904,995.20 : 668,857,492.80 = 290,936,799.60 : x
  2. Step 2: Convert to fraction form
    445,904,995.20/668,857,492.80 = 290,936,799.60/x
  3. Step 3: Cross multiply
    445,904,995.20x = 668,857,492.80 × 290,936,799.60
  4. Step 4: Simplify right side
    445,904,995.20x = 194,595,258,343,712,032
  5. Step 5: Solve for x
    x = 194,595,258,343,712,032/445,904,995.20
  6. Step 6: Final answer
    x = 436,405,199.40

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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.