Home / 138,366,508.44-190,939,828.50-75,641,412.72

Finding the Fourth Proportional to 138,366,508.44, 190,939,828.50 and 75,641,412.72

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Solution

The fourth proportional to 138,366,508.44, 190,939,828.50 and 75,641,412.72 is: 104,381,895.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,366,508.44 : 190,939,828.50 = 75,641,412.72 : x
  2. Step 2: Convert to fraction form
    138,366,508.44/190,939,828.50 = 75,641,412.72/x
  3. Step 3: Cross multiply
    138,366,508.44x = 190,939,828.50 × 75,641,412.72
  4. Step 4: Simplify right side
    138,366,508.44x = 14,442,958,372,254,518
  5. Step 5: Solve for x
    x = 14,442,958,372,254,518/138,366,508.44
  6. Step 6: Final answer
    x = 104,381,895.12

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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.