Home / 140,734,495.12-210,917,891.76-78,483,325.36

Finding the Fourth Proportional to 140,734,495.12, 210,917,891.76 and 78,483,325.36

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Solution

The fourth proportional to 140,734,495.12, 210,917,891.76 and 78,483,325.36 is: 117,622,460.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,734,495.12 : 210,917,891.76 = 78,483,325.36 : x
  2. Step 2: Convert to fraction form
    140,734,495.12/210,917,891.76 = 78,483,325.36/x
  3. Step 3: Cross multiply
    140,734,495.12x = 210,917,891.76 × 78,483,325.36
  4. Step 4: Simplify right side
    140,734,495.12x = 16,553,537,523,245,342
  5. Step 5: Solve for x
    x = 16,553,537,523,245,342/140,734,495.12
  6. Step 6: Final answer
    x = 117,622,460.00

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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.