Home / 1,990,657,692.40-2,985,986,538.60-1,869,625,807.60

Finding the Fourth Proportional to 1,990,657,692.40, 2,985,986,538.60 and 1,869,625,807.60

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Solution

The fourth proportional to 1,990,657,692.40, 2,985,986,538.60 and 1,869,625,807.60 is: 2,804,438,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,692.40 : 2,985,986,538.60 = 1,869,625,807.60 : x
  2. Step 2: Convert to fraction form
    1,990,657,692.40/2,985,986,538.60 = 1,869,625,807.60/x
  3. Step 3: Cross multiply
    1,990,657,692.40x = 2,985,986,538.60 × 1,869,625,807.60
  4. Step 4: Simplify right side
    1,990,657,692.40x = 5,582,677,493,712,752,640
  5. Step 5: Solve for x
    x = 5,582,677,493,712,752,640/1,990,657,692.40
  6. Step 6: Final answer
    x = 2,804,438,711.40

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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.