Home / 67,878,138.69-93,671,477.15-36,938,529.45

Finding the Fourth Proportional to 67,878,138.69, 93,671,477.15 and 36,938,529.45

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Solution

The fourth proportional to 67,878,138.69, 93,671,477.15 and 36,938,529.45 is: 50,974,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,878,138.69 : 93,671,477.15 = 36,938,529.45 : x
  2. Step 2: Convert to fraction form
    67,878,138.69/93,671,477.15 = 36,938,529.45/x
  3. Step 3: Cross multiply
    67,878,138.69x = 93,671,477.15 × 36,938,529.45
  4. Step 4: Simplify right side
    67,878,138.69x = 3,460,086,617,145,584.50
  5. Step 5: Solve for x
    x = 3,460,086,617,145,584.50/67,878,138.69
  6. Step 6: Final answer
    x = 50,974,977.86

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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.