Home / 120,711,979.32-166,586,555.12-67,798,011.68

Finding the Fourth Proportional to 120,711,979.32, 166,586,555.12 and 67,798,011.68

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Solution

The fourth proportional to 120,711,979.32, 166,586,555.12 and 67,798,011.68 is: 93,563,516.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,711,979.32 : 166,586,555.12 = 67,798,011.68 : x
  2. Step 2: Convert to fraction form
    120,711,979.32/166,586,555.12 = 67,798,011.68/x
  3. Step 3: Cross multiply
    120,711,979.32x = 166,586,555.12 × 67,798,011.68
  4. Step 4: Simplify right side
    120,711,979.32x = 11,294,237,209,756,726
  5. Step 5: Solve for x
    x = 11,294,237,209,756,726/120,711,979.32
  6. Step 6: Final answer
    x = 93,563,516.01

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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.