Home / 20,208,528.10-30,312,792.15-15,673,564.90

Finding the Fourth Proportional to 20,208,528.10, 30,312,792.15 and 15,673,564.90

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Solution

The fourth proportional to 20,208,528.10, 30,312,792.15 and 15,673,564.90 is: 23,510,347.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208,528.10 : 30,312,792.15 = 15,673,564.90 : x
  2. Step 2: Convert to fraction form
    20,208,528.10/30,312,792.15 = 15,673,564.90/x
  3. Step 3: Cross multiply
    20,208,528.10x = 30,312,792.15 × 15,673,564.90
  4. Step 4: Simplify right side
    20,208,528.10x = 475,109,515,063,235.50
  5. Step 5: Solve for x
    x = 475,109,515,063,235.50/20,208,528.10
  6. Step 6: Final answer
    x = 23,510,347.35

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Double scale
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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.