Home / 288,735,172.10-433,102,758.15-256,990,429.70

Finding the Fourth Proportional to 288,735,172.10, 433,102,758.15 and 256,990,429.70

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Solution

The fourth proportional to 288,735,172.10, 433,102,758.15 and 256,990,429.70 is: 385,485,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,735,172.10 : 433,102,758.15 = 256,990,429.70 : x
  2. Step 2: Convert to fraction form
    288,735,172.10/433,102,758.15 = 256,990,429.70/x
  3. Step 3: Cross multiply
    288,735,172.10x = 433,102,758.15 × 256,990,429.70
  4. Step 4: Simplify right side
    288,735,172.10x = 111,303,263,921,223,664
  5. Step 5: Solve for x
    x = 111,303,263,921,223,664/288,735,172.10
  6. Step 6: Final answer
    x = 385,485,644.55

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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.