Home / 214,563,354-321,893,007.40-78,248,737.50

Finding the Fourth Proportional to 214,563,354, 321,893,007.40 and 78,248,737.50

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Solution

The fourth proportional to 214,563,354, 321,893,007.40 and 78,248,737.50 is: 117,390,602.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,563,354 : 321,893,007.40 = 78,248,737.50 : x
  2. Step 2: Convert to fraction form
    214,563,354/321,893,007.40 = 78,248,737.50/x
  3. Step 3: Cross multiply
    214,563,354x = 321,893,007.40 × 78,248,737.50
  4. Step 4: Simplify right side
    214,563,354x = 25,187,721,439,128,156
  5. Step 5: Solve for x
    x = 25,187,721,439,128,156/214,563,354
  6. Step 6: Final answer
    x = 117,390,602.68

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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.