Home / 256,248,894.40-384,336,016.80-74,477,118.40

Finding the Fourth Proportional to 256,248,894.40, 384,336,016.80 and 74,477,118.40

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Solution

The fourth proportional to 256,248,894.40, 384,336,016.80 and 74,477,118.40 is: 111,704,829.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,248,894.40 : 384,336,016.80 = 74,477,118.40 : x
  2. Step 2: Convert to fraction form
    256,248,894.40/384,336,016.80 = 74,477,118.40/x
  3. Step 3: Cross multiply
    256,248,894.40x = 384,336,016.80 × 74,477,118.40
  4. Step 4: Simplify right side
    256,248,894.40x = 28,624,239,028,597,992
  5. Step 5: Solve for x
    x = 28,624,239,028,597,992/256,248,894.40
  6. Step 6: Final answer
    x = 111,704,829.38

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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.