Home / 310,023,815.70-465,035,723.55-278,456,220.30

Finding the Fourth Proportional to 310,023,815.70, 465,035,723.55 and 278,456,220.30

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Solution

The fourth proportional to 310,023,815.70, 465,035,723.55 and 278,456,220.30 is: 417,684,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,023,815.70 : 465,035,723.55 = 278,456,220.30 : x
  2. Step 2: Convert to fraction form
    310,023,815.70/465,035,723.55 = 278,456,220.30/x
  3. Step 3: Cross multiply
    310,023,815.70x = 465,035,723.55 × 278,456,220.30
  4. Step 4: Simplify right side
    310,023,815.70x = 129,492,089,884,208,704
  5. Step 5: Solve for x
    x = 129,492,089,884,208,704/310,023,815.70
  6. Step 6: Final answer
    x = 417,684,330.45

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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.