Home / 1,273,127,907.70-1,909,691,861.55-1,212,862,498.30

Finding the Fourth Proportional to 1,273,127,907.70, 1,909,691,861.55 and 1,212,862,498.30

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Solution

The fourth proportional to 1,273,127,907.70, 1,909,691,861.55 and 1,212,862,498.30 is: 1,819,293,747.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,127,907.70 : 1,909,691,861.55 = 1,212,862,498.30 : x
  2. Step 2: Convert to fraction form
    1,273,127,907.70/1,909,691,861.55 = 1,212,862,498.30/x
  3. Step 3: Cross multiply
    1,273,127,907.70x = 1,909,691,861.55 × 1,212,862,498.30
  4. Step 4: Simplify right side
    1,273,127,907.70x = 2,316,193,642,182,710,784
  5. Step 5: Solve for x
    x = 2,316,193,642,182,710,784/1,273,127,907.70
  6. Step 6: Final answer
    x = 1,819,293,747.45

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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.