Home / 1,990,657,077.60-2,985,985,616.40-1,021,406,671.20

Finding the Fourth Proportional to 1,990,657,077.60, 2,985,985,616.40 and 1,021,406,671.20

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Solution

The fourth proportional to 1,990,657,077.60, 2,985,985,616.40 and 1,021,406,671.20 is: 1,532,110,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,657,077.60 : 2,985,985,616.40 = 1,021,406,671.20 : x
  2. Step 2: Convert to fraction form
    1,990,657,077.60/2,985,985,616.40 = 1,021,406,671.20/x
  3. Step 3: Cross multiply
    1,990,657,077.60x = 2,985,985,616.40 × 1,021,406,671.20
  4. Step 4: Simplify right side
    1,990,657,077.60x = 3,049,905,628,698,204,160
  5. Step 5: Solve for x
    x = 3,049,905,628,698,204,160/1,990,657,077.60
  6. Step 6: Final answer
    x = 1,532,110,006.80

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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.