Home / 1,011,137,982,936.20-1,395,474,418,041.40-615,203,139,972.70

Finding the Fourth Proportional to 1,011,137,982,936.20, 1,395,474,418,041.40 and 615,203,139,972.70

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Solution

The fourth proportional to 1,011,137,982,936.20, 1,395,474,418,041.40 and 615,203,139,972.70 is: 849,043,610,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,137,982,936.20 : 1,395,474,418,041.40 = 615,203,139,972.70 : x
  2. Step 2: Convert to fraction form
    1,011,137,982,936.20/1,395,474,418,041.40 = 615,203,139,972.70/x
  3. Step 3: Cross multiply
    1,011,137,982,936.20x = 1,395,474,418,041.40 × 615,203,139,972.70
  4. Step 4: Simplify right side
    1,011,137,982,936.20x = 858,500,243,730,645,408,284,672
  5. Step 5: Solve for x
    x = 858,500,243,730,645,408,284,672/1,011,137,982,936.20
  6. Step 6: Final answer
    x = 849,043,610,484.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.