Home / 680,749,270.77-939,867,746.81-555,599,990.96

Finding the Fourth Proportional to 680,749,270.77, 939,867,746.81 and 555,599,990.96

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Solution

The fourth proportional to 680,749,270.77, 939,867,746.81 and 555,599,990.96 is: 767,081,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,749,270.77 : 939,867,746.81 = 555,599,990.96 : x
  2. Step 2: Convert to fraction form
    680,749,270.77/939,867,746.81 = 555,599,990.96/x
  3. Step 3: Cross multiply
    680,749,270.77x = 939,867,746.81 × 555,599,990.96
  4. Step 4: Simplify right side
    680,749,270.77x = 522,190,511,624,928,960
  5. Step 5: Solve for x
    x = 522,190,511,624,928,960/680,749,270.77
  6. Step 6: Final answer
    x = 767,081,999.27

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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.