Home / 78,880,959.92-118,859,860.54-64,819,031.06

Finding the Fourth Proportional to 78,880,959.92, 118,859,860.54 and 64,819,031.06

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Solution

The fourth proportional to 78,880,959.92, 118,859,860.54 and 64,819,031.06 is: 97,670,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880,959.92 : 118,859,860.54 = 64,819,031.06 : x
  2. Step 2: Convert to fraction form
    78,880,959.92/118,859,860.54 = 64,819,031.06/x
  3. Step 3: Cross multiply
    78,880,959.92x = 118,859,860.54 × 64,819,031.06
  4. Step 4: Simplify right side
    78,880,959.92x = 7,704,380,992,129,529
  5. Step 5: Solve for x
    x = 7,704,380,992,129,529/78,880,959.92
  6. Step 6: Final answer
    x = 97,670,984.23

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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.