Home / 221,671,211.40-331,939,946.70-163,850,430.60

Finding the Fourth Proportional to 221,671,211.40, 331,939,946.70 and 163,850,430.60

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Solution

The fourth proportional to 221,671,211.40, 331,939,946.70 and 163,850,430.60 is: 245,356,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,671,211.40 : 331,939,946.70 = 163,850,430.60 : x
  2. Step 2: Convert to fraction form
    221,671,211.40/331,939,946.70 = 163,850,430.60/x
  3. Step 3: Cross multiply
    221,671,211.40x = 331,939,946.70 × 163,850,430.60
  4. Step 4: Simplify right side
    221,671,211.40x = 54,388,503,200,136,048
  5. Step 5: Solve for x
    x = 54,388,503,200,136,048/221,671,211.40
  6. Step 6: Final answer
    x = 245,356,638.13

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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.