Home / 123,717,408.40-185,576,112.60-42,938,376.40

Finding the Fourth Proportional to 123,717,408.40, 185,576,112.60 and 42,938,376.40

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Solution

The fourth proportional to 123,717,408.40, 185,576,112.60 and 42,938,376.40 is: 64,407,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,717,408.40 : 185,576,112.60 = 42,938,376.40 : x
  2. Step 2: Convert to fraction form
    123,717,408.40/185,576,112.60 = 42,938,376.40/x
  3. Step 3: Cross multiply
    123,717,408.40x = 185,576,112.60 × 42,938,376.40
  4. Step 4: Simplify right side
    123,717,408.40x = 7,968,336,973,667,582
  5. Step 5: Solve for x
    x = 7,968,336,973,667,582/123,717,408.40
  6. Step 6: Final answer
    x = 64,407,564.60

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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.