Home / 398,779,760.80-598,169,641.20-183,788,912.80

Finding the Fourth Proportional to 398,779,760.80, 598,169,641.20 and 183,788,912.80

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Solution

The fourth proportional to 398,779,760.80, 598,169,641.20 and 183,788,912.80 is: 275,683,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,779,760.80 : 598,169,641.20 = 183,788,912.80 : x
  2. Step 2: Convert to fraction form
    398,779,760.80/598,169,641.20 = 183,788,912.80/x
  3. Step 3: Cross multiply
    398,779,760.80x = 598,169,641.20 × 183,788,912.80
  4. Step 4: Simplify right side
    398,779,760.80x = 109,936,948,026,114,096
  5. Step 5: Solve for x
    x = 109,936,948,026,114,096/398,779,760.80
  6. Step 6: Final answer
    x = 275,683,369.20

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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.