Home / 1,292,912,415.59-1,939,368,648.77-310,338,954.77

Finding the Fourth Proportional to 1,292,912,415.59, 1,939,368,648.77 and 310,338,954.77

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Solution

The fourth proportional to 1,292,912,415.59, 1,939,368,648.77 and 310,338,954.77 is: 465,508,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,912,415.59 : 1,939,368,648.77 = 310,338,954.77 : x
  2. Step 2: Convert to fraction form
    1,292,912,415.59/1,939,368,648.77 = 310,338,954.77/x
  3. Step 3: Cross multiply
    1,292,912,415.59x = 1,939,368,648.77 × 310,338,954.77
  4. Step 4: Simplify right side
    1,292,912,415.59x = 601,861,639,361,740,544
  5. Step 5: Solve for x
    x = 601,861,639,361,740,544/1,292,912,415.59
  6. Step 6: Final answer
    x = 465,508,438.24

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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.