Home / 38,045,934,856.04-52,503,512,784.45-21,129,582,410.54

Finding the Fourth Proportional to 38,045,934,856.04, 52,503,512,784.45 and 21,129,582,410.54

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Solution

The fourth proportional to 38,045,934,856.04, 52,503,512,784.45 and 21,129,582,410.54 is: 29,158,891,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,045,934,856.04 : 52,503,512,784.45 = 21,129,582,410.54 : x
  2. Step 2: Convert to fraction form
    38,045,934,856.04/52,503,512,784.45 = 21,129,582,410.54/x
  3. Step 3: Cross multiply
    38,045,934,856.04x = 52,503,512,784.45 × 21,129,582,410.54
  4. Step 4: Simplify right side
    38,045,934,856.04x = 1,109,377,300,221,614,096,384
  5. Step 5: Solve for x
    x = 1,109,377,300,221,614,096,384/38,045,934,856.04
  6. Step 6: Final answer
    x = 29,158,891,861.10

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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.