Home / 520,112,200.38-780,182,501.49-151,638,247.80

Finding the Fourth Proportional to 520,112,200.38, 780,182,501.49 and 151,638,247.80

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Solution

The fourth proportional to 520,112,200.38, 780,182,501.49 and 151,638,247.80 is: 227,461,511.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,112,200.38 : 780,182,501.49 = 151,638,247.80 : x
  2. Step 2: Convert to fraction form
    520,112,200.38/780,182,501.49 = 151,638,247.80/x
  3. Step 3: Cross multiply
    520,112,200.38x = 780,182,501.49 × 151,638,247.80
  4. Step 4: Simplify right side
    520,112,200.38x = 118,305,507,490,164,496
  5. Step 5: Solve for x
    x = 118,305,507,490,164,496/520,112,200.38
  6. Step 6: Final answer
    x = 227,461,511.97

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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.