Home / 430,416,144.60-645,624,216.90-397,159,747.80

Finding the Fourth Proportional to 430,416,144.60, 645,624,216.90 and 397,159,747.80

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Solution

The fourth proportional to 430,416,144.60, 645,624,216.90 and 397,159,747.80 is: 595,739,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,416,144.60 : 645,624,216.90 = 397,159,747.80 : x
  2. Step 2: Convert to fraction form
    430,416,144.60/645,624,216.90 = 397,159,747.80/x
  3. Step 3: Cross multiply
    430,416,144.60x = 645,624,216.90 × 397,159,747.80
  4. Step 4: Simplify right side
    430,416,144.60x = 256,415,951,157,576,512
  5. Step 5: Solve for x
    x = 256,415,951,157,576,512/430,416,144.60
  6. Step 6: Final answer
    x = 595,739,621.70

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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.