Home / 258,048,323.40-387,072,485.10-194,347,331.40

Finding the Fourth Proportional to 258,048,323.40, 387,072,485.10 and 194,347,331.40

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Solution

The fourth proportional to 258,048,323.40, 387,072,485.10 and 194,347,331.40 is: 291,520,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,048,323.40 : 387,072,485.10 = 194,347,331.40 : x
  2. Step 2: Convert to fraction form
    258,048,323.40/387,072,485.10 = 194,347,331.40/x
  3. Step 3: Cross multiply
    258,048,323.40x = 387,072,485.10 × 194,347,331.40
  4. Step 4: Simplify right side
    258,048,323.40x = 75,226,504,537,551,264
  5. Step 5: Solve for x
    x = 75,226,504,537,551,264/258,048,323.40
  6. Step 6: Final answer
    x = 291,520,997.10

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1.5x scale

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.