Home / 758,941,918.85-1,047,320,175.87-419,862,921.59

Finding the Fourth Proportional to 758,941,918.85, 1,047,320,175.87 and 419,862,921.59

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Solution

The fourth proportional to 758,941,918.85, 1,047,320,175.87 and 419,862,921.59 is: 579,399,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,941,918.85 : 1,047,320,175.87 = 419,862,921.59 : x
  2. Step 2: Convert to fraction form
    758,941,918.85/1,047,320,175.87 = 419,862,921.59/x
  3. Step 3: Cross multiply
    758,941,918.85x = 1,047,320,175.87 × 419,862,921.59
  4. Step 4: Simplify right side
    758,941,918.85x = 439,730,908,883,549,120
  5. Step 5: Solve for x
    x = 439,730,908,883,549,120/758,941,918.85
  6. Step 6: Final answer
    x = 579,399,948.74

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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.