Home / 19,128,521,448.70-26,406,916,449.08-11,896,899,880.78

Finding the Fourth Proportional to 19,128,521,448.70, 26,406,916,449.08 and 11,896,899,880.78

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Solution

The fourth proportional to 19,128,521,448.70, 26,406,916,449.08 and 11,896,899,880.78 is: 16,423,665,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128,521,448.70 : 26,406,916,449.08 = 11,896,899,880.78 : x
  2. Step 2: Convert to fraction form
    19,128,521,448.70/26,406,916,449.08 = 11,896,899,880.78/x
  3. Step 3: Cross multiply
    19,128,521,448.70x = 26,406,916,449.08 × 11,896,899,880.78
  4. Step 4: Simplify right side
    19,128,521,448.70x = 314,160,441,154,794,225,664
  5. Step 5: Solve for x
    x = 314,160,441,154,794,225,664/19,128,521,448.70
  6. Step 6: Final answer
    x = 16,423,665,676.27

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1.5x scale

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.