Home / 1,250,129,056.58-1,725,209,775-685,636,413.38

Finding the Fourth Proportional to 1,250,129,056.58, 1,725,209,775 and 685,636,413.38

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Solution

The fourth proportional to 1,250,129,056.58, 1,725,209,775 and 685,636,413.38 is: 946,195,623.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,129,056.58 : 1,725,209,775 = 685,636,413.38 : x
  2. Step 2: Convert to fraction form
    1,250,129,056.58/1,725,209,775 = 685,636,413.38/x
  3. Step 3: Cross multiply
    1,250,129,056.58x = 1,725,209,775 × 685,636,413.38
  4. Step 4: Simplify right side
    1,250,129,056.58x = 1,182,866,642,459,116,800
  5. Step 5: Solve for x
    x = 1,182,866,642,459,116,800/1,250,129,056.58
  6. Step 6: Final answer
    x = 946,195,623.75

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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.