Home / 20,662,618,151.27-28,512,594,347.89-11,506,455,111.70

Finding the Fourth Proportional to 20,662,618,151.27, 28,512,594,347.89 and 11,506,455,111.70

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Solution

The fourth proportional to 20,662,618,151.27, 28,512,594,347.89 and 11,506,455,111.70 is: 15,877,895,268.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662,618,151.27 : 28,512,594,347.89 = 11,506,455,111.70 : x
  2. Step 2: Convert to fraction form
    20,662,618,151.27/28,512,594,347.89 = 11,506,455,111.70/x
  3. Step 3: Cross multiply
    20,662,618,151.27x = 28,512,594,347.89 × 11,506,455,111.70
  4. Step 4: Simplify right side
    20,662,618,151.27x = 328,078,886,982,107,463,680
  5. Step 5: Solve for x
    x = 328,078,886,982,107,463,680/20,662,618,151.27
  6. Step 6: Final answer
    x = 15,877,895,268.66

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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.