Home / 727,679,953.80-1,091,519,930.70-210,127,278.60

Finding the Fourth Proportional to 727,679,953.80, 1,091,519,930.70 and 210,127,278.60

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Solution

The fourth proportional to 727,679,953.80, 1,091,519,930.70 and 210,127,278.60 is: 315,190,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,679,953.80 : 1,091,519,930.70 = 210,127,278.60 : x
  2. Step 2: Convert to fraction form
    727,679,953.80/1,091,519,930.70 = 210,127,278.60/x
  3. Step 3: Cross multiply
    727,679,953.80x = 1,091,519,930.70 × 210,127,278.60
  4. Step 4: Simplify right side
    727,679,953.80x = 229,358,112,575,651,584
  5. Step 5: Solve for x
    x = 229,358,112,575,651,584/727,679,953.80
  6. Step 6: Final answer
    x = 315,190,917.90

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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.