Home / 20,352,148.70-30,528,223.05-20,210,431.10

Finding the Fourth Proportional to 20,352,148.70, 30,528,223.05 and 20,210,431.10

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Solution

The fourth proportional to 20,352,148.70, 30,528,223.05 and 20,210,431.10 is: 30,315,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352,148.70 : 30,528,223.05 = 20,210,431.10 : x
  2. Step 2: Convert to fraction form
    20,352,148.70/30,528,223.05 = 20,210,431.10/x
  3. Step 3: Cross multiply
    20,352,148.70x = 30,528,223.05 × 20,210,431.10
  4. Step 4: Simplify right side
    20,352,148.70x = 616,988,548,557,456.88
  5. Step 5: Solve for x
    x = 616,988,548,557,456.88/20,352,148.70
  6. Step 6: Final answer
    x = 30,315,646.65

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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.