Home / 30,341,720.78-45,503,094.45-10,142,238.86

Finding the Fourth Proportional to 30,341,720.78, 45,503,094.45 and 10,142,238.86

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Solution

The fourth proportional to 30,341,720.78, 45,503,094.45 and 10,142,238.86 is: 15,210,187.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,720.78 : 45,503,094.45 = 10,142,238.86 : x
  2. Step 2: Convert to fraction form
    30,341,720.78/45,503,094.45 = 10,142,238.86/x
  3. Step 3: Cross multiply
    30,341,720.78x = 45,503,094.45 × 10,142,238.86
  4. Step 4: Simplify right side
    30,341,720.78x = 461,503,252,781,040.31
  5. Step 5: Solve for x
    x = 461,503,252,781,040.31/30,341,720.78
  6. Step 6: Final answer
    x = 15,210,187.19

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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.