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Finding the Fourth Proportional to 388,697,709.54, 583,047,671.16 and 112,371,418.64

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Solution

The fourth proportional to 388,697,709.54, 583,047,671.16 and 112,371,418.64 is: 168,557,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,697,709.54 : 583,047,671.16 = 112,371,418.64 : x
  2. Step 2: Convert to fraction form
    388,697,709.54/583,047,671.16 = 112,371,418.64/x
  3. Step 3: Cross multiply
    388,697,709.54x = 583,047,671.16 × 112,371,418.64
  4. Step 4: Simplify right side
    388,697,709.54x = 65,517,893,942,997,408
  5. Step 5: Solve for x
    x = 65,517,893,942,997,408/388,697,709.54
  6. Step 6: Final answer
    x = 168,557,447.95

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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.