Home / 56,679,867,902.15-78,217,752,865.11-30,959,164,223.70

Finding the Fourth Proportional to 56,679,867,902.15, 78,217,752,865.11 and 30,959,164,223.70

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Solution

The fourth proportional to 56,679,867,902.15, 78,217,752,865.11 and 30,959,164,223.70 is: 42,723,392,728.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,679,867,902.15 : 78,217,752,865.11 = 30,959,164,223.70 : x
  2. Step 2: Convert to fraction form
    56,679,867,902.15/78,217,752,865.11 = 30,959,164,223.70/x
  3. Step 3: Cross multiply
    56,679,867,902.15x = 78,217,752,865.11 × 30,959,164,223.70
  4. Step 4: Simplify right side
    56,679,867,902.15x = 2,421,556,256,159,253,921,792
  5. Step 5: Solve for x
    x = 2,421,556,256,159,253,921,792/56,679,867,902.15
  6. Step 6: Final answer
    x = 42,723,392,728.08

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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.