Home / 145,209,829.70-200,380,092.08-80,019,716.42

Finding the Fourth Proportional to 145,209,829.70, 200,380,092.08 and 80,019,716.42

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Solution

The fourth proportional to 145,209,829.70, 200,380,092.08 and 80,019,716.42 is: 110,421,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,209,829.70 : 200,380,092.08 = 80,019,716.42 : x
  2. Step 2: Convert to fraction form
    145,209,829.70/200,380,092.08 = 80,019,716.42/x
  3. Step 3: Cross multiply
    145,209,829.70x = 200,380,092.08 × 80,019,716.42
  4. Step 4: Simplify right side
    145,209,829.70x = 16,034,358,144,455,090
  5. Step 5: Solve for x
    x = 16,034,358,144,455,090/145,209,829.70
  6. Step 6: Final answer
    x = 110,421,988.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.