Home / 163,763,866.72-245,730,815.76-66,790,718.56

Finding the Fourth Proportional to 163,763,866.72, 245,730,815.76 and 66,790,718.56

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Solution

The fourth proportional to 163,763,866.72, 245,730,815.76 and 66,790,718.56 is: 100,220,751.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,763,866.72 : 245,730,815.76 = 66,790,718.56 : x
  2. Step 2: Convert to fraction form
    163,763,866.72/245,730,815.76 = 66,790,718.56/x
  3. Step 3: Cross multiply
    163,763,866.72x = 245,730,815.76 × 66,790,718.56
  4. Step 4: Simplify right side
    163,763,866.72x = 16,412,537,756,945,372
  5. Step 5: Solve for x
    x = 16,412,537,756,945,372/163,763,866.72
  6. Step 6: Final answer
    x = 100,220,751.29

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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.