Home / 740,320,999.53-1,021,643,076.12-410,317,443.69

Finding the Fourth Proportional to 740,320,999.53, 1,021,643,076.12 and 410,317,443.69

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Solution

The fourth proportional to 740,320,999.53, 1,021,643,076.12 and 410,317,443.69 is: 566,238,125.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,320,999.53 : 1,021,643,076.12 = 410,317,443.69 : x
  2. Step 2: Convert to fraction form
    740,320,999.53/1,021,643,076.12 = 410,317,443.69/x
  3. Step 3: Cross multiply
    740,320,999.53x = 1,021,643,076.12 × 410,317,443.69
  4. Step 4: Simplify right side
    740,320,999.53x = 419,197,975,349,986,688
  5. Step 5: Solve for x
    x = 419,197,975,349,986,688/740,320,999.53
  6. Step 6: Final answer
    x = 566,238,125.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.