Home / 1,026,432,005.80-1,539,648,008.70-380,451,692.20

Finding the Fourth Proportional to 1,026,432,005.80, 1,539,648,008.70 and 380,451,692.20

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Solution

The fourth proportional to 1,026,432,005.80, 1,539,648,008.70 and 380,451,692.20 is: 570,677,538.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,432,005.80 : 1,539,648,008.70 = 380,451,692.20 : x
  2. Step 2: Convert to fraction form
    1,026,432,005.80/1,539,648,008.70 = 380,451,692.20/x
  3. Step 3: Cross multiply
    1,026,432,005.80x = 1,539,648,008.70 × 380,451,692.20
  4. Step 4: Simplify right side
    1,026,432,005.80x = 585,761,690,302,275,328
  5. Step 5: Solve for x
    x = 585,761,690,302,275,328/1,026,432,005.80
  6. Step 6: Final answer
    x = 570,677,538.30

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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.