Home / 70,956,007.20-106,434,010.80-40,638,938.40

Finding the Fourth Proportional to 70,956,007.20, 106,434,010.80 and 40,638,938.40

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Solution

The fourth proportional to 70,956,007.20, 106,434,010.80 and 40,638,938.40 is: 60,958,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,007.20 : 106,434,010.80 = 40,638,938.40 : x
  2. Step 2: Convert to fraction form
    70,956,007.20/106,434,010.80 = 40,638,938.40/x
  3. Step 3: Cross multiply
    70,956,007.20x = 106,434,010.80 × 40,638,938.40
  4. Step 4: Simplify right side
    70,956,007.20x = 4,325,365,208,566,134.50
  5. Step 5: Solve for x
    x = 4,325,365,208,566,134.50/70,956,007.20
  6. Step 6: Final answer
    x = 60,958,407.60

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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.