Home / 147,629,143.80-221,443,715.70-136,879,601.40

Finding the Fourth Proportional to 147,629,143.80, 221,443,715.70 and 136,879,601.40

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Solution

The fourth proportional to 147,629,143.80, 221,443,715.70 and 136,879,601.40 is: 205,319,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,629,143.80 : 221,443,715.70 = 136,879,601.40 : x
  2. Step 2: Convert to fraction form
    147,629,143.80/221,443,715.70 = 136,879,601.40/x
  3. Step 3: Cross multiply
    147,629,143.80x = 221,443,715.70 × 136,879,601.40
  4. Step 4: Simplify right side
    147,629,143.80x = 30,311,127,537,550,920
  5. Step 5: Solve for x
    x = 30,311,127,537,550,920/147,629,143.80
  6. Step 6: Final answer
    x = 205,319,402.10

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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.