Home / 147,743,999.40-221,615,999.10-67,122,431.40

Finding the Fourth Proportional to 147,743,999.40, 221,615,999.10 and 67,122,431.40

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Solution

The fourth proportional to 147,743,999.40, 221,615,999.10 and 67,122,431.40 is: 100,683,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,743,999.40 : 221,615,999.10 = 67,122,431.40 : x
  2. Step 2: Convert to fraction form
    147,743,999.40/221,615,999.10 = 67,122,431.40/x
  3. Step 3: Cross multiply
    147,743,999.40x = 221,615,999.10 × 67,122,431.40
  4. Step 4: Simplify right side
    147,743,999.40x = 14,875,404,696,732,212
  5. Step 5: Solve for x
    x = 14,875,404,696,732,212/147,743,999.40
  6. Step 6: Final answer
    x = 100,683,647.10

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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.