Home / 384,939,698.70-577,409,548.05-126,092,502.30

Finding the Fourth Proportional to 384,939,698.70, 577,409,548.05 and 126,092,502.30

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Solution

The fourth proportional to 384,939,698.70, 577,409,548.05 and 126,092,502.30 is: 189,138,753.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,939,698.70 : 577,409,548.05 = 126,092,502.30 : x
  2. Step 2: Convert to fraction form
    384,939,698.70/577,409,548.05 = 126,092,502.30/x
  3. Step 3: Cross multiply
    384,939,698.70x = 577,409,548.05 × 126,092,502.30
  4. Step 4: Simplify right side
    384,939,698.70x = 72,807,014,765,536,576
  5. Step 5: Solve for x
    x = 72,807,014,765,536,576/384,939,698.70
  6. Step 6: Final answer
    x = 189,138,753.45

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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.