Home / 1,990,659,277.60-2,985,988,916.40-1,340,909,159.20

Finding the Fourth Proportional to 1,990,659,277.60, 2,985,988,916.40 and 1,340,909,159.20

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Solution

The fourth proportional to 1,990,659,277.60, 2,985,988,916.40 and 1,340,909,159.20 is: 2,011,363,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,659,277.60 : 2,985,988,916.40 = 1,340,909,159.20 : x
  2. Step 2: Convert to fraction form
    1,990,659,277.60/2,985,988,916.40 = 1,340,909,159.20/x
  3. Step 3: Cross multiply
    1,990,659,277.60x = 2,985,988,916.40 × 1,340,909,159.20
  4. Step 4: Simplify right side
    1,990,659,277.60x = 4,003,939,887,270,443,520
  5. Step 5: Solve for x
    x = 4,003,939,887,270,443,520/1,990,659,277.60
  6. Step 6: Final answer
    x = 2,011,363,738.80

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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.