Home / 209,953,013.40-314,929,520.10-118,120,008.60

Finding the Fourth Proportional to 209,953,013.40, 314,929,520.10 and 118,120,008.60

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Solution

The fourth proportional to 209,953,013.40, 314,929,520.10 and 118,120,008.60 is: 177,180,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,013.40 : 314,929,520.10 = 118,120,008.60 : x
  2. Step 2: Convert to fraction form
    209,953,013.40/314,929,520.10 = 118,120,008.60/x
  3. Step 3: Cross multiply
    209,953,013.40x = 314,929,520.10 × 118,120,008.60
  4. Step 4: Simplify right side
    209,953,013.40x = 37,199,477,622,605,872
  5. Step 5: Solve for x
    x = 37,199,477,622,605,872/209,953,013.40
  6. Step 6: Final answer
    x = 177,180,012.90

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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.