Home / 109,156,700.70-163,735,051.05-80,458,886.70

Finding the Fourth Proportional to 109,156,700.70, 163,735,051.05 and 80,458,886.70

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Solution

The fourth proportional to 109,156,700.70, 163,735,051.05 and 80,458,886.70 is: 120,688,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,700.70 : 163,735,051.05 = 80,458,886.70 : x
  2. Step 2: Convert to fraction form
    109,156,700.70/163,735,051.05 = 80,458,886.70/x
  3. Step 3: Cross multiply
    109,156,700.70x = 163,735,051.05 × 80,458,886.70
  4. Step 4: Simplify right side
    109,156,700.70x = 13,173,939,921,250,668
  5. Step 5: Solve for x
    x = 13,173,939,921,250,668/109,156,700.70
  6. Step 6: Final answer
    x = 120,688,330.05

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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.