Home / 163,763,868.72-245,730,818.76-66,790,720.56

Finding the Fourth Proportional to 163,763,868.72, 245,730,818.76 and 66,790,720.56

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Solution

The fourth proportional to 163,763,868.72, 245,730,818.76 and 66,790,720.56 is: 100,220,754.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,763,868.72 : 245,730,818.76 = 66,790,720.56 : x
  2. Step 2: Convert to fraction form
    163,763,868.72/245,730,818.76 = 66,790,720.56/x
  3. Step 3: Cross multiply
    163,763,868.72x = 245,730,818.76 × 66,790,720.56
  4. Step 4: Simplify right side
    163,763,868.72x = 16,412,538,448,779,166
  5. Step 5: Solve for x
    x = 16,412,538,448,779,166/163,763,868.72
  6. Step 6: Final answer
    x = 100,220,754.29

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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.