Home / 430,920,109.40-646,380,164.10-424,117,664.60

Finding the Fourth Proportional to 430,920,109.40, 646,380,164.10 and 424,117,664.60

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Solution

The fourth proportional to 430,920,109.40, 646,380,164.10 and 424,117,664.60 is: 636,176,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,920,109.40 : 646,380,164.10 = 424,117,664.60 : x
  2. Step 2: Convert to fraction form
    430,920,109.40/646,380,164.10 = 424,117,664.60/x
  3. Step 3: Cross multiply
    430,920,109.40x = 646,380,164.10 × 424,117,664.60
  4. Step 4: Simplify right side
    430,920,109.40x = 274,141,245,641,856,800
  5. Step 5: Solve for x
    x = 274,141,245,641,856,800/430,920,109.40
  6. Step 6: Final answer
    x = 636,176,496.90

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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.