Home / 1,252,349,278.73-1,878,213,520.83-423,284,515.28

Finding the Fourth Proportional to 1,252,349,278.73, 1,878,213,520.83 and 423,284,515.28

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Solution

The fourth proportional to 1,252,349,278.73, 1,878,213,520.83 and 423,284,515.28 is: 634,821,861.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,349,278.73 : 1,878,213,520.83 = 423,284,515.28 : x
  2. Step 2: Convert to fraction form
    1,252,349,278.73/1,878,213,520.83 = 423,284,515.28/x
  3. Step 3: Cross multiply
    1,252,349,278.73x = 1,878,213,520.83 × 423,284,515.28
  4. Step 4: Simplify right side
    1,252,349,278.73x = 795,018,699,756,868,608
  5. Step 5: Solve for x
    x = 795,018,699,756,868,608/1,252,349,278.73
  6. Step 6: Final answer
    x = 634,821,861.01

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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.