Home / 280,836,000.65-420,687,130.58-280,836,000.65

Finding the Fourth Proportional to 280,836,000.65, 420,687,130.58 and 280,836,000.65

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Solution

The fourth proportional to 280,836,000.65, 420,687,130.58 and 280,836,000.65 is: 420,687,130.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,836,000.65 : 420,687,130.58 = 280,836,000.65 : x
  2. Step 2: Convert to fraction form
    280,836,000.65/420,687,130.58 = 280,836,000.65/x
  3. Step 3: Cross multiply
    280,836,000.65x = 420,687,130.58 × 280,836,000.65
  4. Step 4: Simplify right side
    280,836,000.65x = 118,144,091,275,607,328
  5. Step 5: Solve for x
    x = 118,144,091,275,607,328/280,836,000.65
  6. Step 6: Final answer
    x = 420,687,130.58

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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.