Home / 657,482,997.11-907,315,321.54-356,065,860.40

Finding the Fourth Proportional to 657,482,997.11, 907,315,321.54 and 356,065,860.40

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Solution

The fourth proportional to 657,482,997.11, 907,315,321.54 and 356,065,860.40 is: 491,364,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,482,997.11 : 907,315,321.54 = 356,065,860.40 : x
  2. Step 2: Convert to fraction form
    657,482,997.11/907,315,321.54 = 356,065,860.40/x
  3. Step 3: Cross multiply
    657,482,997.11x = 907,315,321.54 × 356,065,860.40
  4. Step 4: Simplify right side
    657,482,997.11x = 323,064,010,618,292,352
  5. Step 5: Solve for x
    x = 323,064,010,618,292,352/657,482,997.11
  6. Step 6: Final answer
    x = 491,364,814.06

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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.