Home / 30,528,007.20-45,792,010.80-21,570,055.20

Finding the Fourth Proportional to 30,528,007.20, 45,792,010.80 and 21,570,055.20

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Solution

The fourth proportional to 30,528,007.20, 45,792,010.80 and 21,570,055.20 is: 32,355,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,007.20 : 45,792,010.80 = 21,570,055.20 : x
  2. Step 2: Convert to fraction form
    30,528,007.20/45,792,010.80 = 21,570,055.20/x
  3. Step 3: Cross multiply
    30,528,007.20x = 45,792,010.80 × 21,570,055.20
  4. Step 4: Simplify right side
    30,528,007.20x = 987,736,200,674,996
  5. Step 5: Solve for x
    x = 987,736,200,674,996/30,528,007.20
  6. Step 6: Final answer
    x = 32,355,082.80

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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.