Home / 1,911,829,888.53-2,868,255,155.48-685,122,342.93

Finding the Fourth Proportional to 1,911,829,888.53, 2,868,255,155.48 and 685,122,342.93

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Solution

The fourth proportional to 1,911,829,888.53, 2,868,255,155.48 and 685,122,342.93 is: 1,027,866,393.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,829,888.53 : 2,868,255,155.48 = 685,122,342.93 : x
  2. Step 2: Convert to fraction form
    1,911,829,888.53/2,868,255,155.48 = 685,122,342.93/x
  3. Step 3: Cross multiply
    1,911,829,888.53x = 2,868,255,155.48 × 685,122,342.93
  4. Step 4: Simplify right side
    1,911,829,888.53x = 1,965,105,692,240,083,200
  5. Step 5: Solve for x
    x = 1,965,105,692,240,083,200/1,911,829,888.53
  6. Step 6: Final answer
    x = 1,027,866,393.36

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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.