Home / 328,541,702.80-492,812,554.20-86,229,101.20

Finding the Fourth Proportional to 328,541,702.80, 492,812,554.20 and 86,229,101.20

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Solution

The fourth proportional to 328,541,702.80, 492,812,554.20 and 86,229,101.20 is: 129,343,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,541,702.80 : 492,812,554.20 = 86,229,101.20 : x
  2. Step 2: Convert to fraction form
    328,541,702.80/492,812,554.20 = 86,229,101.20/x
  3. Step 3: Cross multiply
    328,541,702.80x = 492,812,554.20 × 86,229,101.20
  4. Step 4: Simplify right side
    328,541,702.80x = 42,494,783,608,742,288
  5. Step 5: Solve for x
    x = 42,494,783,608,742,288/328,541,702.80
  6. Step 6: Final answer
    x = 129,343,651.80

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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.