Home / 841,657,385.80-1,262,486,078.70-259,339,767.40

Finding the Fourth Proportional to 841,657,385.80, 1,262,486,078.70 and 259,339,767.40

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Solution

The fourth proportional to 841,657,385.80, 1,262,486,078.70 and 259,339,767.40 is: 389,009,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,657,385.80 : 1,262,486,078.70 = 259,339,767.40 : x
  2. Step 2: Convert to fraction form
    841,657,385.80/1,262,486,078.70 = 259,339,767.40/x
  3. Step 3: Cross multiply
    841,657,385.80x = 1,262,486,078.70 × 259,339,767.40
  4. Step 4: Simplify right side
    841,657,385.80x = 327,412,845,995,796,096
  5. Step 5: Solve for x
    x = 327,412,845,995,796,096/841,657,385.80
  6. Step 6: Final answer
    x = 389,009,651.10

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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.