Home / 256,653,614.40-384,980,421.60-196,187,438.40

Finding the Fourth Proportional to 256,653,614.40, 384,980,421.60 and 196,187,438.40

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Solution

The fourth proportional to 256,653,614.40, 384,980,421.60 and 196,187,438.40 is: 294,281,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,653,614.40 : 384,980,421.60 = 196,187,438.40 : x
  2. Step 2: Convert to fraction form
    256,653,614.40/384,980,421.60 = 196,187,438.40/x
  3. Step 3: Cross multiply
    256,653,614.40x = 384,980,421.60 × 196,187,438.40
  4. Step 4: Simplify right side
    256,653,614.40x = 75,528,322,747,856,032
  5. Step 5: Solve for x
    x = 75,528,322,747,856,032/256,653,614.40
  6. Step 6: Final answer
    x = 294,281,157.60

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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.