Home / 305,860,854.06-421,977,258.45-200,074,653.18

Finding the Fourth Proportional to 305,860,854.06, 421,977,258.45 and 200,074,653.18

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Solution

The fourth proportional to 305,860,854.06, 421,977,258.45 and 200,074,653.18 is: 276,030,595.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,860,854.06 : 421,977,258.45 = 200,074,653.18 : x
  2. Step 2: Convert to fraction form
    305,860,854.06/421,977,258.45 = 200,074,653.18/x
  3. Step 3: Cross multiply
    305,860,854.06x = 421,977,258.45 × 200,074,653.18
  4. Step 4: Simplify right side
    305,860,854.06x = 84,426,953,634,230,976
  5. Step 5: Solve for x
    x = 84,426,953,634,230,976/305,860,854.06
  6. Step 6: Final answer
    x = 276,030,595.33

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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.