Home / 80,848,897.20-121,278,594.60-42,585,145.20

Finding the Fourth Proportional to 80,848,897.20, 121,278,594.60 and 42,585,145.20

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Solution

The fourth proportional to 80,848,897.20, 121,278,594.60 and 42,585,145.20 is: 63,880,482.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,848,897.20 : 121,278,594.60 = 42,585,145.20 : x
  2. Step 2: Convert to fraction form
    80,848,897.20/121,278,594.60 = 42,585,145.20/x
  3. Step 3: Cross multiply
    80,848,897.20x = 121,278,594.60 × 42,585,145.20
  4. Step 4: Simplify right side
    80,848,897.20x = 5,164,666,560,692,936
  5. Step 5: Solve for x
    x = 5,164,666,560,692,936/80,848,897.20
  6. Step 6: Final answer
    x = 63,880,482.47

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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.