Home / 328,541,410.80-492,812,116.20-86,228,809.20

Finding the Fourth Proportional to 328,541,410.80, 492,812,116.20 and 86,228,809.20

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Solution

The fourth proportional to 328,541,410.80, 492,812,116.20 and 86,228,809.20 is: 129,343,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,541,410.80 : 492,812,116.20 = 86,228,809.20 : x
  2. Step 2: Convert to fraction form
    328,541,410.80/492,812,116.20 = 86,228,809.20/x
  3. Step 3: Cross multiply
    328,541,410.80x = 492,812,116.20 × 86,228,809.20
  4. Step 4: Simplify right side
    328,541,410.80x = 42,494,601,939,258,032
  5. Step 5: Solve for x
    x = 42,494,601,939,258,032/328,541,410.80
  6. Step 6: Final answer
    x = 129,343,213.80

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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.