Home / 153,405,063.35-211,697,589.93-83,790,425.78

Finding the Fourth Proportional to 153,405,063.35, 211,697,589.93 and 83,790,425.78

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Solution

The fourth proportional to 153,405,063.35, 211,697,589.93 and 83,790,425.78 is: 115,630,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,405,063.35 : 211,697,589.93 = 83,790,425.78 : x
  2. Step 2: Convert to fraction form
    153,405,063.35/211,697,589.93 = 83,790,425.78/x
  3. Step 3: Cross multiply
    153,405,063.35x = 211,697,589.93 × 83,790,425.78
  4. Step 4: Simplify right side
    153,405,063.35x = 17,738,231,196,834,542
  5. Step 5: Solve for x
    x = 17,738,231,196,834,542/153,405,063.35
  6. Step 6: Final answer
    x = 115,630,024.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.