Home / 442,308,432.40-663,462,648.60-415,045,509.10

Finding the Fourth Proportional to 442,308,432.40, 663,462,648.60 and 415,045,509.10

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Solution

The fourth proportional to 442,308,432.40, 663,462,648.60 and 415,045,509.10 is: 622,568,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,308,432.40 : 663,462,648.60 = 415,045,509.10 : x
  2. Step 2: Convert to fraction form
    442,308,432.40/663,462,648.60 = 415,045,509.10/x
  3. Step 3: Cross multiply
    442,308,432.40x = 663,462,648.60 × 415,045,509.10
  4. Step 4: Simplify right side
    442,308,432.40x = 275,367,192,757,021,440
  5. Step 5: Solve for x
    x = 275,367,192,757,021,440/442,308,432.40
  6. Step 6: Final answer
    x = 622,568,263.65

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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.