Home / 860,920,967.70-1,291,381,451.55-369,550,619.10

Finding the Fourth Proportional to 860,920,967.70, 1,291,381,451.55 and 369,550,619.10

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Solution

The fourth proportional to 860,920,967.70, 1,291,381,451.55 and 369,550,619.10 is: 554,325,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,920,967.70 : 1,291,381,451.55 = 369,550,619.10 : x
  2. Step 2: Convert to fraction form
    860,920,967.70/1,291,381,451.55 = 369,550,619.10/x
  3. Step 3: Cross multiply
    860,920,967.70x = 1,291,381,451.55 × 369,550,619.10
  4. Step 4: Simplify right side
    860,920,967.70x = 477,230,814,914,559,168
  5. Step 5: Solve for x
    x = 477,230,814,914,559,168/860,920,967.70
  6. Step 6: Final answer
    x = 554,325,928.65

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Double scale
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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.