Home / 1,287,673,537.80-1,931,652,024.30-414,126,251.40

Finding the Fourth Proportional to 1,287,673,537.80, 1,931,652,024.30 and 414,126,251.40

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Solution

The fourth proportional to 1,287,673,537.80, 1,931,652,024.30 and 414,126,251.40 is: 621,234,954.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,673,537.80 : 1,931,652,024.30 = 414,126,251.40 : x
  2. Step 2: Convert to fraction form
    1,287,673,537.80/1,931,652,024.30 = 414,126,251.40/x
  3. Step 3: Cross multiply
    1,287,673,537.80x = 1,931,652,024.30 × 414,126,251.40
  4. Step 4: Simplify right side
    1,287,673,537.80x = 799,947,811,832,580,608
  5. Step 5: Solve for x
    x = 799,947,811,832,580,608/1,287,673,537.80
  6. Step 6: Final answer
    x = 621,234,954.63

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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.