Home / 90,798,500.35-136,197,750.53-78,043,916.35

Finding the Fourth Proportional to 90,798,500.35, 136,197,750.53 and 78,043,916.35

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Solution

The fourth proportional to 90,798,500.35, 136,197,750.53 and 78,043,916.35 is: 117,065,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,798,500.35 : 136,197,750.53 = 78,043,916.35 : x
  2. Step 2: Convert to fraction form
    90,798,500.35/136,197,750.53 = 78,043,916.35/x
  3. Step 3: Cross multiply
    90,798,500.35x = 136,197,750.53 × 78,043,916.35
  4. Step 4: Simplify right side
    90,798,500.35x = 10,629,405,849,031,268
  5. Step 5: Solve for x
    x = 10,629,405,849,031,268/90,798,500.35
  6. Step 6: Final answer
    x = 117,065,874.53

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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.