Home / 679,907,881.60-1,020,040,048.96-213,550,468.00

Finding the Fourth Proportional to 679,907,881.60, 1,020,040,048.96 and 213,550,468.00

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Solution

The fourth proportional to 679,907,881.60, 1,020,040,048.96 and 213,550,468.00 is: 320,381,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,907,881.60 : 1,020,040,048.96 = 213,550,468.00 : x
  2. Step 2: Convert to fraction form
    679,907,881.60/1,020,040,048.96 = 213,550,468.00/x
  3. Step 3: Cross multiply
    679,907,881.60x = 1,020,040,048.96 × 213,550,468.00
  4. Step 4: Simplify right side
    679,907,881.60x = 217,830,029,831,066,944
  5. Step 5: Solve for x
    x = 217,830,029,831,066,944/679,907,881.60
  6. Step 6: Final answer
    x = 320,381,680.71

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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.