Home / 1,121,010,207.80-1,681,515,311.70-753,678,188.60

Finding the Fourth Proportional to 1,121,010,207.80, 1,681,515,311.70 and 753,678,188.60

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Solution

The fourth proportional to 1,121,010,207.80, 1,681,515,311.70 and 753,678,188.60 is: 1,130,517,282.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,010,207.80 : 1,681,515,311.70 = 753,678,188.60 : x
  2. Step 2: Convert to fraction form
    1,121,010,207.80/1,681,515,311.70 = 753,678,188.60/x
  3. Step 3: Cross multiply
    1,121,010,207.80x = 1,681,515,311.70 × 753,678,188.60
  4. Step 4: Simplify right side
    1,121,010,207.80x = 1,267,321,414,225,220,352
  5. Step 5: Solve for x
    x = 1,267,321,414,225,220,352/1,121,010,207.80
  6. Step 6: Final answer
    x = 1,130,517,282.90

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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.