Home / 1,002,173,909.81-1,501,482,308.82-418,623,938.78

Finding the Fourth Proportional to 1,002,173,909.81, 1,501,482,308.82 and 418,623,938.78

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Solution

The fourth proportional to 1,002,173,909.81, 1,501,482,308.82 and 418,623,938.78 is: 627,192,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,173,909.81 : 1,501,482,308.82 = 418,623,938.78 : x
  2. Step 2: Convert to fraction form
    1,002,173,909.81/1,501,482,308.82 = 418,623,938.78/x
  3. Step 3: Cross multiply
    1,002,173,909.81x = 1,501,482,308.82 × 418,623,938.78
  4. Step 4: Simplify right side
    1,002,173,909.81x = 628,556,438,126,716,672
  5. Step 5: Solve for x
    x = 628,556,438,126,716,672/1,002,173,909.81
  6. Step 6: Final answer
    x = 627,192,977.16

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1.5x scale

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.