Home / 18,563,128,678.36-25,617,120,339.63-10,105,016,665.60

Finding the Fourth Proportional to 18,563,128,678.36, 25,617,120,339.63 and 10,105,016,665.60

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Solution

The fourth proportional to 18,563,128,678.36, 25,617,120,339.63 and 10,105,016,665.60 is: 13,944,924,502.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563,128,678.36 : 25,617,120,339.63 = 10,105,016,665.60 : x
  2. Step 2: Convert to fraction form
    18,563,128,678.36/25,617,120,339.63 = 10,105,016,665.60/x
  3. Step 3: Cross multiply
    18,563,128,678.36x = 25,617,120,339.63 × 10,105,016,665.60
  4. Step 4: Simplify right side
    18,563,128,678.36x = 258,861,427,956,641,890,304
  5. Step 5: Solve for x
    x = 258,861,427,956,641,890,304/18,563,128,678.36
  6. Step 6: Final answer
    x = 13,944,924,502.86

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Double scale
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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.