Home / 30,528,054.80-45,792,082.20-30,315,478.40

Finding the Fourth Proportional to 30,528,054.80, 45,792,082.20 and 30,315,478.40

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Solution

The fourth proportional to 30,528,054.80, 45,792,082.20 and 30,315,478.40 is: 45,473,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,054.80 : 45,792,082.20 = 30,315,478.40 : x
  2. Step 2: Convert to fraction form
    30,528,054.80/45,792,082.20 = 30,315,478.40/x
  3. Step 3: Cross multiply
    30,528,054.80x = 45,792,082.20 × 30,315,478.40
  4. Step 4: Simplify right side
    30,528,054.80x = 1,388,208,878,825,124.50
  5. Step 5: Solve for x
    x = 1,388,208,878,825,124.50/30,528,054.80
  6. Step 6: Final answer
    x = 45,473,217.60

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Double scale
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Similar ratio
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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.