Home / 139,969,246.80-209,953,870.20-130,403,308.80

Finding the Fourth Proportional to 139,969,246.80, 209,953,870.20 and 130,403,308.80

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Solution

The fourth proportional to 139,969,246.80, 209,953,870.20 and 130,403,308.80 is: 195,604,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,246.80 : 209,953,870.20 = 130,403,308.80 : x
  2. Step 2: Convert to fraction form
    139,969,246.80/209,953,870.20 = 130,403,308.80/x
  3. Step 3: Cross multiply
    139,969,246.80x = 209,953,870.20 × 130,403,308.80
  4. Step 4: Simplify right side
    139,969,246.80x = 27,378,679,369,445,716
  5. Step 5: Solve for x
    x = 27,378,679,369,445,716/139,969,246.80
  6. Step 6: Final answer
    x = 195,604,963.20

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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.