Home / 30,528,053.15-45,792,079.73-28,638,485.15

Finding the Fourth Proportional to 30,528,053.15, 45,792,079.73 and 28,638,485.15

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Solution

The fourth proportional to 30,528,053.15, 45,792,079.73 and 28,638,485.15 is: 42,957,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,053.15 : 45,792,079.73 = 28,638,485.15 : x
  2. Step 2: Convert to fraction form
    30,528,053.15/45,792,079.73 = 28,638,485.15/x
  3. Step 3: Cross multiply
    30,528,053.15x = 45,792,079.73 × 28,638,485.15
  4. Step 4: Simplify right side
    30,528,053.15x = 1,311,415,795,335,220.75
  5. Step 5: Solve for x
    x = 1,311,415,795,335,220.75/30,528,053.15
  6. Step 6: Final answer
    x = 42,957,727.73

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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.