Home / 82,378,209.65-113,649,566.64-47,077,076.19

Finding the Fourth Proportional to 82,378,209.65, 113,649,566.64 and 47,077,076.19

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Solution

The fourth proportional to 82,378,209.65, 113,649,566.64 and 47,077,076.19 is: 64,947,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378,209.65 : 113,649,566.64 = 47,077,076.19 : x
  2. Step 2: Convert to fraction form
    82,378,209.65/113,649,566.64 = 47,077,076.19/x
  3. Step 3: Cross multiply
    82,378,209.65x = 113,649,566.64 × 47,077,076.19
  4. Step 4: Simplify right side
    82,378,209.65x = 5,350,289,307,671,762
  5. Step 5: Solve for x
    x = 5,350,289,307,671,762/82,378,209.65
  6. Step 6: Final answer
    x = 64,947,870.69

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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.