Home / 1,248,559,692.60-1,870,823,999.70-787,673,062.20

Finding the Fourth Proportional to 1,248,559,692.60, 1,870,823,999.70 and 787,673,062.20

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Solution

The fourth proportional to 1,248,559,692.60, 1,870,823,999.70 and 787,673,062.20 is: 1,180,238,059.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,559,692.60 : 1,870,823,999.70 = 787,673,062.20 : x
  2. Step 2: Convert to fraction form
    1,248,559,692.60/1,870,823,999.70 = 787,673,062.20/x
  3. Step 3: Cross multiply
    1,248,559,692.60x = 1,870,823,999.70 × 787,673,062.20
  4. Step 4: Simplify right side
    1,248,559,692.60x = 1,473,597,668,680,951,040
  5. Step 5: Solve for x
    x = 1,473,597,668,680,951,040/1,248,559,692.60
  6. Step 6: Final answer
    x = 1,180,238,059.43

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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.