Home / 40,129,930,713.78-60,155,135,237.79-18,844,275,927.15

Finding the Fourth Proportional to 40,129,930,713.78, 60,155,135,237.79 and 18,844,275,927.15

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Solution

The fourth proportional to 40,129,930,713.78, 60,155,135,237.79 and 18,844,275,927.15 is: 28,247,742,936.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129,930,713.78 : 60,155,135,237.79 = 18,844,275,927.15 : x
  2. Step 2: Convert to fraction form
    40,129,930,713.78/60,155,135,237.79 = 18,844,275,927.15/x
  3. Step 3: Cross multiply
    40,129,930,713.78x = 60,155,135,237.79 × 18,844,275,927.15
  4. Step 4: Simplify right side
    40,129,930,713.78x = 1,133,579,966,855,938,834,432
  5. Step 5: Solve for x
    x = 1,133,579,966,855,938,834,432/40,129,930,713.78
  6. Step 6: Final answer
    x = 28,247,742,936.34

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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.