Home / 989,012,948.40-1,483,519,422.60-252,081,428.40

Finding the Fourth Proportional to 989,012,948.40, 1,483,519,422.60 and 252,081,428.40

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Solution

The fourth proportional to 989,012,948.40, 1,483,519,422.60 and 252,081,428.40 is: 378,122,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,012,948.40 : 1,483,519,422.60 = 252,081,428.40 : x
  2. Step 2: Convert to fraction form
    989,012,948.40/1,483,519,422.60 = 252,081,428.40/x
  3. Step 3: Cross multiply
    989,012,948.40x = 1,483,519,422.60 × 252,081,428.40
  4. Step 4: Simplify right side
    989,012,948.40x = 373,967,695,108,151,232
  5. Step 5: Solve for x
    x = 373,967,695,108,151,232/989,012,948.40
  6. Step 6: Final answer
    x = 378,122,142.60

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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.