Home / 145,655,183.10-218,482,774.65-138,936,719.10

Finding the Fourth Proportional to 145,655,183.10, 218,482,774.65 and 138,936,719.10

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Solution

The fourth proportional to 145,655,183.10, 218,482,774.65 and 138,936,719.10 is: 208,405,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,183.10 : 218,482,774.65 = 138,936,719.10 : x
  2. Step 2: Convert to fraction form
    145,655,183.10/218,482,774.65 = 138,936,719.10/x
  3. Step 3: Cross multiply
    145,655,183.10x = 218,482,774.65 × 138,936,719.10
  4. Step 4: Simplify right side
    145,655,183.10x = 30,355,279,889,735,652
  5. Step 5: Solve for x
    x = 30,355,279,889,735,652/145,655,183.10
  6. Step 6: Final answer
    x = 208,405,078.65

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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.