Home / 291,342,654.40-437,013,981.60-255,510,846.40

Finding the Fourth Proportional to 291,342,654.40, 437,013,981.60 and 255,510,846.40

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Solution

The fourth proportional to 291,342,654.40, 437,013,981.60 and 255,510,846.40 is: 383,266,269.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,342,654.40 : 437,013,981.60 = 255,510,846.40 : x
  2. Step 2: Convert to fraction form
    291,342,654.40/437,013,981.60 = 255,510,846.40/x
  3. Step 3: Cross multiply
    291,342,654.40x = 437,013,981.60 × 255,510,846.40
  4. Step 4: Simplify right side
    291,342,654.40x = 111,661,812,327,250,032
  5. Step 5: Solve for x
    x = 111,661,812,327,250,032/291,342,654.40
  6. Step 6: Final answer
    x = 383,266,269.60

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Double scale
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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.