Home / 139,968,164.20-209,952,246.30-99,153,495.40

Finding the Fourth Proportional to 139,968,164.20, 209,952,246.30 and 99,153,495.40

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Solution

The fourth proportional to 139,968,164.20, 209,952,246.30 and 99,153,495.40 is: 148,730,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,164.20 : 209,952,246.30 = 99,153,495.40 : x
  2. Step 2: Convert to fraction form
    139,968,164.20/209,952,246.30 = 99,153,495.40/x
  3. Step 3: Cross multiply
    139,968,164.20x = 209,952,246.30 × 99,153,495.40
  4. Step 4: Simplify right side
    139,968,164.20x = 20,817,499,087,726,720
  5. Step 5: Solve for x
    x = 20,817,499,087,726,720/139,968,164.20
  6. Step 6: Final answer
    x = 148,730,243.10

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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.