Home / 138,140,340.64-190,633,952.40-76,260,764.32

Finding the Fourth Proportional to 138,140,340.64, 190,633,952.40 and 76,260,764.32

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Solution

The fourth proportional to 138,140,340.64, 190,633,952.40 and 76,260,764.32 is: 105,240,010.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,140,340.64 : 190,633,952.40 = 76,260,764.32 : x
  2. Step 2: Convert to fraction form
    138,140,340.64/190,633,952.40 = 76,260,764.32/x
  3. Step 3: Cross multiply
    138,140,340.64x = 190,633,952.40 × 76,260,764.32
  4. Step 4: Simplify right side
    138,140,340.64x = 14,537,890,915,366,498
  5. Step 5: Solve for x
    x = 14,537,890,915,366,498/138,140,340.64
  6. Step 6: Final answer
    x = 105,240,010.62

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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.