Home / 139,097,315.80-208,645,973.70-122,091,203.80

Finding the Fourth Proportional to 139,097,315.80, 208,645,973.70 and 122,091,203.80

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Solution

The fourth proportional to 139,097,315.80, 208,645,973.70 and 122,091,203.80 is: 183,136,805.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,097,315.80 : 208,645,973.70 = 122,091,203.80 : x
  2. Step 2: Convert to fraction form
    139,097,315.80/208,645,973.70 = 122,091,203.80/x
  3. Step 3: Cross multiply
    139,097,315.80x = 208,645,973.70 × 122,091,203.80
  4. Step 4: Simplify right side
    139,097,315.80x = 25,473,838,097,056,136
  5. Step 5: Solve for x
    x = 25,473,838,097,056,136/139,097,315.80
  6. Step 6: Final answer
    x = 183,136,805.70

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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.