Home / 109,156,699.20-163,735,048.80-80,458,885.20

Finding the Fourth Proportional to 109,156,699.20, 163,735,048.80 and 80,458,885.20

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Solution

The fourth proportional to 109,156,699.20, 163,735,048.80 and 80,458,885.20 is: 120,688,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,699.20 : 163,735,048.80 = 80,458,885.20 : x
  2. Step 2: Convert to fraction form
    109,156,699.20/163,735,048.80 = 80,458,885.20/x
  3. Step 3: Cross multiply
    109,156,699.20x = 163,735,048.80 × 80,458,885.20
  4. Step 4: Simplify right side
    109,156,699.20x = 13,173,939,494,615,600
  5. Step 5: Solve for x
    x = 13,173,939,494,615,600/109,156,699.20
  6. Step 6: Final answer
    x = 120,688,327.80

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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.