Home / 266,219,919.60-399,329,879.40-221,430,159.60

Finding the Fourth Proportional to 266,219,919.60, 399,329,879.40 and 221,430,159.60

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Solution

The fourth proportional to 266,219,919.60, 399,329,879.40 and 221,430,159.60 is: 332,145,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,219,919.60 : 399,329,879.40 = 221,430,159.60 : x
  2. Step 2: Convert to fraction form
    266,219,919.60/399,329,879.40 = 221,430,159.60/x
  3. Step 3: Cross multiply
    266,219,919.60x = 399,329,879.40 × 221,430,159.60
  4. Step 4: Simplify right side
    266,219,919.60x = 88,423,678,928,590,752
  5. Step 5: Solve for x
    x = 88,423,678,928,590,752/266,219,919.60
  6. Step 6: Final answer
    x = 332,145,239.40

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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.