Home / 305,867,095,325.05-458,722,386,129.28-90,685,320,636.69

Finding the Fourth Proportional to 305,867,095,325.05, 458,722,386,129.28 and 90,685,320,636.69

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Solution

The fourth proportional to 305,867,095,325.05, 458,722,386,129.28 and 90,685,320,636.69 is: 136,004,778,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,867,095,325.05 : 458,722,386,129.28 = 90,685,320,636.69 : x
  2. Step 2: Convert to fraction form
    305,867,095,325.05/458,722,386,129.28 = 90,685,320,636.69/x
  3. Step 3: Cross multiply
    305,867,095,325.05x = 458,722,386,129.28 × 90,685,320,636.69
  4. Step 4: Simplify right side
    305,867,095,325.05x = 41,599,386,669,361,276,125,184
  5. Step 5: Solve for x
    x = 41,599,386,669,361,276,125,184/305,867,095,325.05
  6. Step 6: Final answer
    x = 136,004,778,889.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.