Home / 139,522,182.90-209,283,274.35-42,477,119.70

Finding the Fourth Proportional to 139,522,182.90, 209,283,274.35 and 42,477,119.70

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Solution

The fourth proportional to 139,522,182.90, 209,283,274.35 and 42,477,119.70 is: 63,715,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,522,182.90 : 209,283,274.35 = 42,477,119.70 : x
  2. Step 2: Convert to fraction form
    139,522,182.90/209,283,274.35 = 42,477,119.70/x
  3. Step 3: Cross multiply
    139,522,182.90x = 209,283,274.35 × 42,477,119.70
  4. Step 4: Simplify right side
    139,522,182.90x = 8,889,750,695,772,890
  5. Step 5: Solve for x
    x = 8,889,750,695,772,890/139,522,182.90
  6. Step 6: Final answer
    x = 63,715,679.55

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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.