Home / 78,724,051.11-108,660,798.74-45,694,941.21

Finding the Fourth Proportional to 78,724,051.11, 108,660,798.74 and 45,694,941.21

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Solution

The fourth proportional to 78,724,051.11, 108,660,798.74 and 45,694,941.21 is: 63,071,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,724,051.11 : 108,660,798.74 = 45,694,941.21 : x
  2. Step 2: Convert to fraction form
    78,724,051.11/108,660,798.74 = 45,694,941.21/x
  3. Step 3: Cross multiply
    78,724,051.11x = 108,660,798.74 × 45,694,941.21
  4. Step 4: Simplify right side
    78,724,051.11x = 4,965,248,810,370,180
  5. Step 5: Solve for x
    x = 4,965,248,810,370,180/78,724,051.11
  6. Step 6: Final answer
    x = 63,071,561.24

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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.