Home / 20,503,931,772,399-28,295,446,787,073-11,128,731,235,640

Finding the Fourth Proportional to 20,503,931,772,399, 28,295,446,787,073 and 11,128,731,235,640

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Solution

The fourth proportional to 20,503,931,772,399, 28,295,446,787,073 and 11,128,731,235,640 is: 15,357,660,471,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503,931,772,399 : 28,295,446,787,073 = 11,128,731,235,640 : x
  2. Step 2: Convert to fraction form
    20,503,931,772,399/28,295,446,787,073 = 11,128,731,235,640/x
  3. Step 3: Cross multiply
    20,503,931,772,399x = 28,295,446,787,073 × 11,128,731,235,640
  4. Step 4: Simplify right side
    20,503,931,772,399x = 314,892,422,485,688,778,361,929,728
  5. Step 5: Solve for x
    x = 314,892,422,485,688,778,361,929,728/20,503,931,772,399
  6. Step 6: Final answer
    x = 15,357,660,471,226.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.