Home / 110,495,021.20-165,742,531.80-86,101,879.30

Finding the Fourth Proportional to 110,495,021.20, 165,742,531.80 and 86,101,879.30

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Solution

The fourth proportional to 110,495,021.20, 165,742,531.80 and 86,101,879.30 is: 129,152,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,495,021.20 : 165,742,531.80 = 86,101,879.30 : x
  2. Step 2: Convert to fraction form
    110,495,021.20/165,742,531.80 = 86,101,879.30/x
  3. Step 3: Cross multiply
    110,495,021.20x = 165,742,531.80 × 86,101,879.30
  4. Step 4: Simplify right side
    110,495,021.20x = 14,270,743,467,920,012
  5. Step 5: Solve for x
    x = 14,270,743,467,920,012/110,495,021.20
  6. Step 6: Final answer
    x = 129,152,818.95

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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.