Home / 140,464,909.80-210,697,364.70-137,595,128.40

Finding the Fourth Proportional to 140,464,909.80, 210,697,364.70 and 137,595,128.40

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Solution

The fourth proportional to 140,464,909.80, 210,697,364.70 and 137,595,128.40 is: 206,392,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,464,909.80 : 210,697,364.70 = 137,595,128.40 : x
  2. Step 2: Convert to fraction form
    140,464,909.80/210,697,364.70 = 137,595,128.40/x
  3. Step 3: Cross multiply
    140,464,909.80x = 210,697,364.70 × 137,595,128.40
  4. Step 4: Simplify right side
    140,464,909.80x = 28,990,930,949,438,128
  5. Step 5: Solve for x
    x = 28,990,930,949,438,128/140,464,909.80
  6. Step 6: Final answer
    x = 206,392,692.60

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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.