Home / 646,953,905.15-969,443,377.01-384,120,885.05

Finding the Fourth Proportional to 646,953,905.15, 969,443,377.01 and 384,120,885.05

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Solution

The fourth proportional to 646,953,905.15, 969,443,377.01 and 384,120,885.05 is: 575,595,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,953,905.15 : 969,443,377.01 = 384,120,885.05 : x
  2. Step 2: Convert to fraction form
    646,953,905.15/969,443,377.01 = 384,120,885.05/x
  3. Step 3: Cross multiply
    646,953,905.15x = 969,443,377.01 × 384,120,885.05
  4. Step 4: Simplify right side
    646,953,905.15x = 372,383,447,981,021,440
  5. Step 5: Solve for x
    x = 372,383,447,981,021,440/646,953,905.15
  6. Step 6: Final answer
    x = 575,595,023.10

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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.