Home / 430,765,465.95-646,161,342.84-168,439,539.87

Finding the Fourth Proportional to 430,765,465.95, 646,161,342.84 and 168,439,539.87

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Solution

The fourth proportional to 430,765,465.95, 646,161,342.84 and 168,439,539.87 is: 252,664,449.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,765,465.95 : 646,161,342.84 = 168,439,539.87 : x
  2. Step 2: Convert to fraction form
    430,765,465.95/646,161,342.84 = 168,439,539.87/x
  3. Step 3: Cross multiply
    430,765,465.95x = 646,161,342.84 × 168,439,539.87
  4. Step 4: Simplify right side
    430,765,465.95x = 108,839,119,269,750,928
  5. Step 5: Solve for x
    x = 108,839,119,269,750,928/430,765,465.95
  6. Step 6: Final answer
    x = 252,664,449.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.