Home / 72,592,143.38-100,155,667.28-43,199,913.14

Finding the Fourth Proportional to 72,592,143.38, 100,155,667.28 and 43,199,913.14

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Solution

The fourth proportional to 72,592,143.38, 100,155,667.28 and 43,199,913.14 is: 59,603,090.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,592,143.38 : 100,155,667.28 = 43,199,913.14 : x
  2. Step 2: Convert to fraction form
    72,592,143.38/100,155,667.28 = 43,199,913.14/x
  3. Step 3: Cross multiply
    72,592,143.38x = 100,155,667.28 × 43,199,913.14
  4. Step 4: Simplify right side
    72,592,143.38x = 4,326,716,126,758,741
  5. Step 5: Solve for x
    x = 4,326,716,126,758,741/72,592,143.38
  6. Step 6: Final answer
    x = 59,603,090.99

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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.