Home / 380,094,790.70-570,357,865.58-205,215,495.86

Finding the Fourth Proportional to 380,094,790.70, 570,357,865.58 and 205,215,495.86

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Solution

The fourth proportional to 380,094,790.70, 570,357,865.58 and 205,215,495.86 is: 307,939,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,094,790.70 : 570,357,865.58 = 205,215,495.86 : x
  2. Step 2: Convert to fraction form
    380,094,790.70/570,357,865.58 = 205,215,495.86/x
  3. Step 3: Cross multiply
    380,094,790.70x = 570,357,865.58 × 205,215,495.86
  4. Step 4: Simplify right side
    380,094,790.70x = 117,046,272,203,050,768
  5. Step 5: Solve for x
    x = 117,046,272,203,050,768/380,094,790.70
  6. Step 6: Final answer
    x = 307,939,690.48

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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.