Home / 20,503,931,771,709-28,295,446,786,128-11,128,731,234,947

Finding the Fourth Proportional to 20,503,931,771,709, 28,295,446,786,128 and 11,128,731,234,947

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Solution

The fourth proportional to 20,503,931,771,709, 28,295,446,786,128 and 11,128,731,234,947 is: 15,357,660,470,273.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503,931,771,709 : 28,295,446,786,128 = 11,128,731,234,947 : x
  2. Step 2: Convert to fraction form
    20,503,931,771,709/28,295,446,786,128 = 11,128,731,234,947/x
  3. Step 3: Cross multiply
    20,503,931,771,709x = 28,295,446,786,128 × 11,128,731,234,947
  4. Step 4: Simplify right side
    20,503,931,771,709x = 314,892,422,455,563,396,711,448,576
  5. Step 5: Solve for x
    x = 314,892,422,455,563,396,711,448,576/20,503,931,771,709
  6. Step 6: Final answer
    x = 15,357,660,470,273.66

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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.