Home / 78,825,014.78-108,829,704.95-70,550,748.14

Finding the Fourth Proportional to 78,825,014.78, 108,829,704.95 and 70,550,748.14

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Solution

The fourth proportional to 78,825,014.78, 108,829,704.95 and 70,550,748.14 is: 97,405,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,825,014.78 : 108,829,704.95 = 70,550,748.14 : x
  2. Step 2: Convert to fraction form
    78,825,014.78/108,829,704.95 = 70,550,748.14/x
  3. Step 3: Cross multiply
    78,825,014.78x = 108,829,704.95 × 70,550,748.14
  4. Step 4: Simplify right side
    78,825,014.78x = 7,678,017,104,077,962
  5. Step 5: Solve for x
    x = 7,678,017,104,077,962/78,825,014.78
  6. Step 6: Final answer
    x = 97,405,844.14

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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.