Home / 1,252,349,278.23-1,878,213,520.08-423,284,514.78

Finding the Fourth Proportional to 1,252,349,278.23, 1,878,213,520.08 and 423,284,514.78

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Solution

The fourth proportional to 1,252,349,278.23, 1,878,213,520.08 and 423,284,514.78 is: 634,821,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,349,278.23 : 1,878,213,520.08 = 423,284,514.78 : x
  2. Step 2: Convert to fraction form
    1,252,349,278.23/1,878,213,520.08 = 423,284,514.78/x
  3. Step 3: Cross multiply
    1,252,349,278.23x = 1,878,213,520.08 × 423,284,514.78
  4. Step 4: Simplify right side
    1,252,349,278.23x = 795,018,698,500,298,496
  5. Step 5: Solve for x
    x = 795,018,698,500,298,496/1,252,349,278.23
  6. Step 6: Final answer
    x = 634,821,860.26

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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.