Home / 6,643,029,117.60-9,965,978,567.10-1,985,373,905.40

Finding the Fourth Proportional to 6,643,029,117.60, 9,965,978,567.10 and 1,985,373,905.40

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Solution

The fourth proportional to 6,643,029,117.60, 9,965,978,567.10 and 1,985,373,905.40 is: 2,978,489,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,029,117.60 : 9,965,978,567.10 = 1,985,373,905.40 : x
  2. Step 2: Convert to fraction form
    6,643,029,117.60/9,965,978,567.10 = 1,985,373,905.40/x
  3. Step 3: Cross multiply
    6,643,029,117.60x = 9,965,978,567.10 × 1,985,373,905.40
  4. Step 4: Simplify right side
    6,643,029,117.60x = 19,786,193,788,896,026,624
  5. Step 5: Solve for x
    x = 19,786,193,788,896,026,624/6,643,029,117.60
  6. Step 6: Final answer
    x = 2,978,489,697.79

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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.