Home / 370,991,682.40-556,487,523.60-128,654,586.40

Finding the Fourth Proportional to 370,991,682.40, 556,487,523.60 and 128,654,586.40

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Solution

The fourth proportional to 370,991,682.40, 556,487,523.60 and 128,654,586.40 is: 192,981,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,991,682.40 : 556,487,523.60 = 128,654,586.40 : x
  2. Step 2: Convert to fraction form
    370,991,682.40/556,487,523.60 = 128,654,586.40/x
  3. Step 3: Cross multiply
    370,991,682.40x = 556,487,523.60 × 128,654,586.40
  4. Step 4: Simplify right side
    370,991,682.40x = 71,594,672,185,518,248
  5. Step 5: Solve for x
    x = 71,594,672,185,518,248/370,991,682.40
  6. Step 6: Final answer
    x = 192,981,879.60

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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.