Home / 845,188,800.30-1,267,783,200.45-518,671,449.90

Finding the Fourth Proportional to 845,188,800.30, 1,267,783,200.45 and 518,671,449.90

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Solution

The fourth proportional to 845,188,800.30, 1,267,783,200.45 and 518,671,449.90 is: 778,007,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,188,800.30 : 1,267,783,200.45 = 518,671,449.90 : x
  2. Step 2: Convert to fraction form
    845,188,800.30/1,267,783,200.45 = 518,671,449.90/x
  3. Step 3: Cross multiply
    845,188,800.30x = 1,267,783,200.45 × 518,671,449.90
  4. Step 4: Simplify right side
    845,188,800.30x = 657,562,950,736,263,808
  5. Step 5: Solve for x
    x = 657,562,950,736,263,808/845,188,800.30
  6. Step 6: Final answer
    x = 778,007,174.85

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Double scale
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Similar ratio
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1.5x scale

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.