Home / 111,224,003.40-166,836,005.10-77,211,779.40

Finding the Fourth Proportional to 111,224,003.40, 166,836,005.10 and 77,211,779.40

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Solution

The fourth proportional to 111,224,003.40, 166,836,005.10 and 77,211,779.40 is: 115,817,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,224,003.40 : 166,836,005.10 = 77,211,779.40 : x
  2. Step 2: Convert to fraction form
    111,224,003.40/166,836,005.10 = 77,211,779.40/x
  3. Step 3: Cross multiply
    111,224,003.40x = 166,836,005.10 × 77,211,779.40
  4. Step 4: Simplify right side
    111,224,003.40x = 12,881,704,821,758,476
  5. Step 5: Solve for x
    x = 12,881,704,821,758,476/111,224,003.40
  6. Step 6: Final answer
    x = 115,817,669.10

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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.