Home / 211,803,518.02-292,204,805.25-122,478,956.86

Finding the Fourth Proportional to 211,803,518.02, 292,204,805.25 and 122,478,956.86

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Solution

The fourth proportional to 211,803,518.02, 292,204,805.25 and 122,478,956.86 is: 168,972,357.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,803,518.02 : 292,204,805.25 = 122,478,956.86 : x
  2. Step 2: Convert to fraction form
    211,803,518.02/292,204,805.25 = 122,478,956.86/x
  3. Step 3: Cross multiply
    211,803,518.02x = 292,204,805.25 × 122,478,956.86
  4. Step 4: Simplify right side
    211,803,518.02x = 35,788,939,736,499,452
  5. Step 5: Solve for x
    x = 35,788,939,736,499,452/211,803,518.02
  6. Step 6: Final answer
    x = 168,972,357.36

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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.