Home / 120,536,802.60-166,376,188.26-78,727,259.58

Finding the Fourth Proportional to 120,536,802.60, 166,376,188.26 and 78,727,259.58

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Solution

The fourth proportional to 120,536,802.60, 166,376,188.26 and 78,727,259.58 is: 108,666,739.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,536,802.60 : 166,376,188.26 = 78,727,259.58 : x
  2. Step 2: Convert to fraction form
    120,536,802.60/166,376,188.26 = 78,727,259.58/x
  3. Step 3: Cross multiply
    120,536,802.60x = 166,376,188.26 × 78,727,259.58
  4. Step 4: Simplify right side
    120,536,802.60x = 13,098,341,361,075,968
  5. Step 5: Solve for x
    x = 13,098,341,361,075,968/120,536,802.60
  6. Step 6: Final answer
    x = 108,666,739.77

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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.