Home / 78,880,954.16-118,859,851.87-64,819,025.30

Finding the Fourth Proportional to 78,880,954.16, 118,859,851.87 and 64,819,025.30

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Solution

The fourth proportional to 78,880,954.16, 118,859,851.87 and 64,819,025.30 is: 97,670,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880,954.16 : 118,859,851.87 = 64,819,025.30 : x
  2. Step 2: Convert to fraction form
    78,880,954.16/118,859,851.87 = 64,819,025.30/x
  3. Step 3: Cross multiply
    78,880,954.16x = 118,859,851.87 × 64,819,025.30
  4. Step 4: Simplify right side
    78,880,954.16x = 7,704,379,745,650,885
  5. Step 5: Solve for x
    x = 7,704,379,745,650,885/78,880,954.16
  6. Step 6: Final answer
    x = 97,670,975.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.