Home / 859,603,824.90-1,289,678,312.07-306,894,402.18

Finding the Fourth Proportional to 859,603,824.90, 1,289,678,312.07 and 306,894,402.18

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Solution

The fourth proportional to 859,603,824.90, 1,289,678,312.07 and 306,894,402.18 is: 460,438,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,603,824.90 : 1,289,678,312.07 = 306,894,402.18 : x
  2. Step 2: Convert to fraction form
    859,603,824.90/1,289,678,312.07 = 306,894,402.18/x
  3. Step 3: Cross multiply
    859,603,824.90x = 1,289,678,312.07 × 306,894,402.18
  4. Step 4: Simplify right side
    859,603,824.90x = 395,795,054,587,234,112
  5. Step 5: Solve for x
    x = 395,795,054,587,234,112/859,603,824.90
  6. Step 6: Final answer
    x = 460,438,917.47

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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.