Home / 1,274,240,645.60-1,758,540,469.67-772,470,578.91

Finding the Fourth Proportional to 1,274,240,645.60, 1,758,540,469.67 and 772,470,578.91

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Solution

The fourth proportional to 1,274,240,645.60, 1,758,540,469.67 and 772,470,578.91 is: 1,066,062,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,240,645.60 : 1,758,540,469.67 = 772,470,578.91 : x
  2. Step 2: Convert to fraction form
    1,274,240,645.60/1,758,540,469.67 = 772,470,578.91/x
  3. Step 3: Cross multiply
    1,274,240,645.60x = 1,758,540,469.67 × 772,470,578.91
  4. Step 4: Simplify right side
    1,274,240,645.60x = 1,358,420,774,648,238,592
  5. Step 5: Solve for x
    x = 1,358,420,774,648,238,592/1,274,240,645.60
  6. Step 6: Final answer
    x = 1,066,062,975.89

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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.