Home / 139,968,052.30-209,952,078.45-103,688,346.70

Finding the Fourth Proportional to 139,968,052.30, 209,952,078.45 and 103,688,346.70

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Solution

The fourth proportional to 139,968,052.30, 209,952,078.45 and 103,688,346.70 is: 155,532,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,052.30 : 209,952,078.45 = 103,688,346.70 : x
  2. Step 2: Convert to fraction form
    139,968,052.30/209,952,078.45 = 103,688,346.70/x
  3. Step 3: Cross multiply
    139,968,052.30x = 209,952,078.45 × 103,688,346.70
  4. Step 4: Simplify right side
    139,968,052.30x = 21,769,583,900,709,200
  5. Step 5: Solve for x
    x = 21,769,583,900,709,200/139,968,052.30
  6. Step 6: Final answer
    x = 155,532,520.05

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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.