Home / 30,122,061.20-45,183,091.80-28,043,536.40

Finding the Fourth Proportional to 30,122,061.20, 45,183,091.80 and 28,043,536.40

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Solution

The fourth proportional to 30,122,061.20, 45,183,091.80 and 28,043,536.40 is: 42,065,304.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122,061.20 : 45,183,091.80 = 28,043,536.40 : x
  2. Step 2: Convert to fraction form
    30,122,061.20/45,183,091.80 = 28,043,536.40/x
  3. Step 3: Cross multiply
    30,122,061.20x = 45,183,091.80 × 28,043,536.40
  4. Step 4: Simplify right side
    30,122,061.20x = 1,267,093,679,557,841.25
  5. Step 5: Solve for x
    x = 1,267,093,679,557,841.25/30,122,061.20
  6. Step 6: Final answer
    x = 42,065,304.60

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1.5x scale

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.