Home / 1,683,778,643.76-2,323,629,563.64-931,142,746.97

Finding the Fourth Proportional to 1,683,778,643.76, 2,323,629,563.64 and 931,142,746.97

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Solution

The fourth proportional to 1,683,778,643.76, 2,323,629,563.64 and 931,142,746.97 is: 1,284,985,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,683,778,643.76 : 2,323,629,563.64 = 931,142,746.97 : x
  2. Step 2: Convert to fraction form
    1,683,778,643.76/2,323,629,563.64 = 931,142,746.97/x
  3. Step 3: Cross multiply
    1,683,778,643.76x = 2,323,629,563.64 × 931,142,746.97
  4. Step 4: Simplify right side
    1,683,778,643.76x = 2,163,630,814,821,939,200
  5. Step 5: Solve for x
    x = 2,163,630,814,821,939,200/1,683,778,643.76
  6. Step 6: Final answer
    x = 1,284,985,305.42

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Double scale
Find fourth proportional to 1,683,778,644.76, 2,323,629,565.02 and 931,142,747.97
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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.