Home / 78,236,810.64-117,307,386.27-37,308,767.76

Finding the Fourth Proportional to 78,236,810.64, 117,307,386.27 and 37,308,767.76

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Solution

The fourth proportional to 78,236,810.64, 117,307,386.27 and 37,308,767.76 is: 55,940,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,236,810.64 : 117,307,386.27 = 37,308,767.76 : x
  2. Step 2: Convert to fraction form
    78,236,810.64/117,307,386.27 = 37,308,767.76/x
  3. Step 3: Cross multiply
    78,236,810.64x = 117,307,386.27 × 37,308,767.76
  4. Step 4: Simplify right side
    78,236,810.64x = 4,376,594,030,880,042.50
  5. Step 5: Solve for x
    x = 4,376,594,030,880,042.50/78,236,810.64
  6. Step 6: Final answer
    x = 55,940,343.11

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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.