Home / 139,103,584.80-208,487,415.60-70,911,175.20

Finding the Fourth Proportional to 139,103,584.80, 208,487,415.60 and 70,911,175.20

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Solution

The fourth proportional to 139,103,584.80, 208,487,415.60 and 70,911,175.20 is: 106,281,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,103,584.80 : 208,487,415.60 = 70,911,175.20 : x
  2. Step 2: Convert to fraction form
    139,103,584.80/208,487,415.60 = 70,911,175.20/x
  3. Step 3: Cross multiply
    139,103,584.80x = 208,487,415.60 × 70,911,175.20
  4. Step 4: Simplify right side
    139,103,584.80x = 14,784,087,654,606,814
  5. Step 5: Solve for x
    x = 14,784,087,654,606,814/139,103,584.80
  6. Step 6: Final answer
    x = 106,281,140.60

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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.