Home / 477,174,551.72-658,487,542.02-289,114,189.16

Finding the Fourth Proportional to 477,174,551.72, 658,487,542.02 and 289,114,189.16

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Solution

The fourth proportional to 477,174,551.72, 658,487,542.02 and 289,114,189.16 is: 398,969,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,174,551.72 : 658,487,542.02 = 289,114,189.16 : x
  2. Step 2: Convert to fraction form
    477,174,551.72/658,487,542.02 = 289,114,189.16/x
  3. Step 3: Cross multiply
    477,174,551.72x = 658,487,542.02 × 289,114,189.16
  4. Step 4: Simplify right side
    477,174,551.72x = 190,378,091,783,073,728
  5. Step 5: Solve for x
    x = 190,378,091,783,073,728/477,174,551.72
  6. Step 6: Final answer
    x = 398,969,498.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.