Home / 155,321,461.56-214,348,165.05-84,761,618.38

Finding the Fourth Proportional to 155,321,461.56, 214,348,165.05 and 84,761,618.38

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Solution

The fourth proportional to 155,321,461.56, 214,348,165.05 and 84,761,618.38 is: 116,973,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,321,461.56 : 214,348,165.05 = 84,761,618.38 : x
  2. Step 2: Convert to fraction form
    155,321,461.56/214,348,165.05 = 84,761,618.38/x
  3. Step 3: Cross multiply
    155,321,461.56x = 214,348,165.05 × 84,761,618.38
  4. Step 4: Simplify right side
    155,321,461.56x = 18,168,497,366,421,352
  5. Step 5: Solve for x
    x = 18,168,497,366,421,352/155,321,461.56
  6. Step 6: Final answer
    x = 116,973,515.34

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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.