Home / 82,412,769.81-113,729,341.14-45,242,124.15

Finding the Fourth Proportional to 82,412,769.81, 113,729,341.14 and 45,242,124.15

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Solution

The fourth proportional to 82,412,769.81, 113,729,341.14 and 45,242,124.15 is: 62,433,976.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,412,769.81 : 113,729,341.14 = 45,242,124.15 : x
  2. Step 2: Convert to fraction form
    82,412,769.81/113,729,341.14 = 45,242,124.15/x
  3. Step 3: Cross multiply
    82,412,769.81x = 113,729,341.14 × 45,242,124.15
  4. Step 4: Simplify right side
    82,412,769.81x = 5,145,356,971,353,582
  5. Step 5: Solve for x
    x = 5,145,356,971,353,582/82,412,769.81
  6. Step 6: Final answer
    x = 62,433,976.96

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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.