Home / 78,894,010.40-118,341,015.60-51,684,231.20

Finding the Fourth Proportional to 78,894,010.40, 118,341,015.60 and 51,684,231.20

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Solution

The fourth proportional to 78,894,010.40, 118,341,015.60 and 51,684,231.20 is: 77,526,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,010.40 : 118,341,015.60 = 51,684,231.20 : x
  2. Step 2: Convert to fraction form
    78,894,010.40/118,341,015.60 = 51,684,231.20/x
  3. Step 3: Cross multiply
    78,894,010.40x = 118,341,015.60 × 51,684,231.20
  4. Step 4: Simplify right side
    78,894,010.40x = 6,116,364,410,713,207
  5. Step 5: Solve for x
    x = 6,116,364,410,713,207/78,894,010.40
  6. Step 6: Final answer
    x = 77,526,346.80

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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.