Home / 209,953,876.80-314,930,815.20-64,409,901.60

Finding the Fourth Proportional to 209,953,876.80, 314,930,815.20 and 64,409,901.60

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Solution

The fourth proportional to 209,953,876.80, 314,930,815.20 and 64,409,901.60 is: 96,614,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,876.80 : 314,930,815.20 = 64,409,901.60 : x
  2. Step 2: Convert to fraction form
    209,953,876.80/314,930,815.20 = 64,409,901.60/x
  3. Step 3: Cross multiply
    209,953,876.80x = 314,930,815.20 × 64,409,901.60
  4. Step 4: Simplify right side
    209,953,876.80x = 20,284,662,817,839,784
  5. Step 5: Solve for x
    x = 20,284,662,817,839,784/209,953,876.80
  6. Step 6: Final answer
    x = 96,614,852.40

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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.