Home / 147,629,112.80-221,443,669.20-136,879,570.40

Finding the Fourth Proportional to 147,629,112.80, 221,443,669.20 and 136,879,570.40

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Solution

The fourth proportional to 147,629,112.80, 221,443,669.20 and 136,879,570.40 is: 205,319,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,629,112.80 : 221,443,669.20 = 136,879,570.40 : x
  2. Step 2: Convert to fraction form
    147,629,112.80/221,443,669.20 = 136,879,570.40/x
  3. Step 3: Cross multiply
    147,629,112.80x = 221,443,669.20 × 136,879,570.40
  4. Step 4: Simplify right side
    147,629,112.80x = 30,311,114,307,895,712
  5. Step 5: Solve for x
    x = 30,311,114,307,895,712/147,629,112.80
  6. Step 6: Final answer
    x = 205,319,355.60

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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.