Home / 78,688,226.51-108,587,834.96-43,405,259.09

Finding the Fourth Proportional to 78,688,226.51, 108,587,834.96 and 43,405,259.09

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Solution

The fourth proportional to 78,688,226.51, 108,587,834.96 and 43,405,259.09 is: 59,898,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,688,226.51 : 108,587,834.96 = 43,405,259.09 : x
  2. Step 2: Convert to fraction form
    78,688,226.51/108,587,834.96 = 43,405,259.09/x
  3. Step 3: Cross multiply
    78,688,226.51x = 108,587,834.96 × 43,405,259.09
  4. Step 4: Simplify right side
    78,688,226.51x = 4,713,283,109,700,994
  5. Step 5: Solve for x
    x = 4,713,283,109,700,994/78,688,226.51
  6. Step 6: Final answer
    x = 59,898,199.75

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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.