Home / 1,292,912,381.80-1,939,368,598.44-310,338,921.16

Finding the Fourth Proportional to 1,292,912,381.80, 1,939,368,598.44 and 310,338,921.16

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Solution

The fourth proportional to 1,292,912,381.80, 1,939,368,598.44 and 310,338,921.16 is: 465,508,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,912,381.80 : 1,939,368,598.44 = 310,338,921.16 : x
  2. Step 2: Convert to fraction form
    1,292,912,381.80/1,939,368,598.44 = 310,338,921.16/x
  3. Step 3: Cross multiply
    1,292,912,381.80x = 1,939,368,598.44 × 310,338,921.16
  4. Step 4: Simplify right side
    1,292,912,381.80x = 601,861,558,571,450,880
  5. Step 5: Solve for x
    x = 601,861,558,571,450,880/1,292,912,381.80
  6. Step 6: Final answer
    x = 465,508,387.92

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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.