Home / 156,769,975.13-216,343,406.88-86,210,135.30

Finding the Fourth Proportional to 156,769,975.13, 216,343,406.88 and 86,210,135.30

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Solution

The fourth proportional to 156,769,975.13, 216,343,406.88 and 86,210,135.30 is: 118,970,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769,975.13 : 216,343,406.88 = 86,210,135.30 : x
  2. Step 2: Convert to fraction form
    156,769,975.13/216,343,406.88 = 86,210,135.30/x
  3. Step 3: Cross multiply
    156,769,975.13x = 216,343,406.88 × 86,210,135.30
  4. Step 4: Simplify right side
    156,769,975.13x = 18,650,994,377,711,676
  5. Step 5: Solve for x
    x = 18,650,994,377,711,676/156,769,975.13
  6. Step 6: Final answer
    x = 118,970,449.30

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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.