Home / 1,292,912,339.55-1,939,368,534.98-310,338,878.82

Finding the Fourth Proportional to 1,292,912,339.55, 1,939,368,534.98 and 310,338,878.82

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Solution

The fourth proportional to 1,292,912,339.55, 1,939,368,534.98 and 310,338,878.82 is: 465,508,324.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,912,339.55 : 1,939,368,534.98 = 310,338,878.82 : x
  2. Step 2: Convert to fraction form
    1,292,912,339.55/1,939,368,534.98 = 310,338,878.82/x
  3. Step 3: Cross multiply
    1,292,912,339.55x = 1,939,368,534.98 × 310,338,878.82
  4. Step 4: Simplify right side
    1,292,912,339.55x = 601,861,456,762,927,360
  5. Step 5: Solve for x
    x = 601,861,456,762,927,360/1,292,912,339.55
  6. Step 6: Final answer
    x = 465,508,324.39

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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.