Home / 638,608,549.20-957,632,887.80-293,447,461.20

Finding the Fourth Proportional to 638,608,549.20, 957,632,887.80 and 293,447,461.20

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Solution

The fourth proportional to 638,608,549.20, 957,632,887.80 and 293,447,461.20 is: 440,042,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,608,549.20 : 957,632,887.80 = 293,447,461.20 : x
  2. Step 2: Convert to fraction form
    638,608,549.20/957,632,887.80 = 293,447,461.20/x
  3. Step 3: Cross multiply
    638,608,549.20x = 957,632,887.80 × 293,447,461.20
  4. Step 4: Simplify right side
    638,608,549.20x = 281,014,939,686,534,432
  5. Step 5: Solve for x
    x = 281,014,939,686,534,432/638,608,549.20
  6. Step 6: Final answer
    x = 440,042,558.21

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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.