Home / 646,953,905.65-969,443,377.75-384,120,885.55

Finding the Fourth Proportional to 646,953,905.65, 969,443,377.75 and 384,120,885.55

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Solution

The fourth proportional to 646,953,905.65, 969,443,377.75 and 384,120,885.55 is: 575,595,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,953,905.65 : 969,443,377.75 = 384,120,885.55 : x
  2. Step 2: Convert to fraction form
    646,953,905.65/969,443,377.75 = 384,120,885.55/x
  3. Step 3: Cross multiply
    646,953,905.65x = 969,443,377.75 × 384,120,885.55
  4. Step 4: Simplify right side
    646,953,905.65x = 372,383,448,751,913,152
  5. Step 5: Solve for x
    x = 372,383,448,751,913,152/646,953,905.65
  6. Step 6: Final answer
    x = 575,595,023.85

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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.