Home / 68,688,077.80-103,032,116.70-68,209,780.90

Finding the Fourth Proportional to 68,688,077.80, 103,032,116.70 and 68,209,780.90

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Solution

The fourth proportional to 68,688,077.80, 103,032,116.70 and 68,209,780.90 is: 102,314,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,688,077.80 : 103,032,116.70 = 68,209,780.90 : x
  2. Step 2: Convert to fraction form
    68,688,077.80/103,032,116.70 = 68,209,780.90/x
  3. Step 3: Cross multiply
    68,688,077.80x = 103,032,116.70 × 68,209,780.90
  4. Step 4: Simplify right side
    68,688,077.80x = 7,027,798,105,770,232
  5. Step 5: Solve for x
    x = 7,027,798,105,770,232/68,688,077.80
  6. Step 6: Final answer
    x = 102,314,671.35

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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.