Home / 298,955,087.40-448,432,631.10-221,470,989.60

Finding the Fourth Proportional to 298,955,087.40, 448,432,631.10 and 221,470,989.60

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Solution

The fourth proportional to 298,955,087.40, 448,432,631.10 and 221,470,989.60 is: 332,206,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,955,087.40 : 448,432,631.10 = 221,470,989.60 : x
  2. Step 2: Convert to fraction form
    298,955,087.40/448,432,631.10 = 221,470,989.60/x
  3. Step 3: Cross multiply
    298,955,087.40x = 448,432,631.10 × 221,470,989.60
  4. Step 4: Simplify right side
    298,955,087.40x = 99,314,818,578,648,736
  5. Step 5: Solve for x
    x = 99,314,818,578,648,736/298,955,087.40
  6. Step 6: Final answer
    x = 332,206,484.40

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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.