Home / 28,057,312,388.34-38,718,782,850.14-15,196,632,392.83

Finding the Fourth Proportional to 28,057,312,388.34, 38,718,782,850.14 and 15,196,632,392.83

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Solution

The fourth proportional to 28,057,312,388.34, 38,718,782,850.14 and 15,196,632,392.83 is: 20,971,185,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,057,312,388.34 : 38,718,782,850.14 = 15,196,632,392.83 : x
  2. Step 2: Convert to fraction form
    28,057,312,388.34/38,718,782,850.14 = 15,196,632,392.83/x
  3. Step 3: Cross multiply
    28,057,312,388.34x = 38,718,782,850.14 × 15,196,632,392.83
  4. Step 4: Simplify right side
    28,057,312,388.34x = 588,395,109,671,428,423,680
  5. Step 5: Solve for x
    x = 588,395,109,671,428,423,680/28,057,312,388.34
  6. Step 6: Final answer
    x = 20,971,185,747.50

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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.