Home / 139,968,280.70-209,952,421.05-125,859,506.30

Finding the Fourth Proportional to 139,968,280.70, 209,952,421.05 and 125,859,506.30

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Solution

The fourth proportional to 139,968,280.70, 209,952,421.05 and 125,859,506.30 is: 188,789,259.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,280.70 : 209,952,421.05 = 125,859,506.30 : x
  2. Step 2: Convert to fraction form
    139,968,280.70/209,952,421.05 = 125,859,506.30/x
  3. Step 3: Cross multiply
    139,968,280.70x = 209,952,421.05 × 125,859,506.30
  4. Step 4: Simplify right side
    139,968,280.70x = 26,424,508,059,842,728
  5. Step 5: Solve for x
    x = 26,424,508,059,842,728/139,968,280.70
  6. Step 6: Final answer
    x = 188,789,259.45

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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.