Home / 110,645,427.40-165,968,141.10-78,333,814.60

Finding the Fourth Proportional to 110,645,427.40, 165,968,141.10 and 78,333,814.60

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Solution

The fourth proportional to 110,645,427.40, 165,968,141.10 and 78,333,814.60 is: 117,500,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,645,427.40 : 165,968,141.10 = 78,333,814.60 : x
  2. Step 2: Convert to fraction form
    110,645,427.40/165,968,141.10 = 78,333,814.60/x
  3. Step 3: Cross multiply
    110,645,427.40x = 165,968,141.10 × 78,333,814.60
  4. Step 4: Simplify right side
    110,645,427.40x = 13,000,917,594,434,038
  5. Step 5: Solve for x
    x = 13,000,917,594,434,038/110,645,427.40
  6. Step 6: Final answer
    x = 117,500,721.90

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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.