Home / 7,115,508,368,011.20-9,818,715,414,271.50-3,990,567,741,860.40

Finding the Fourth Proportional to 7,115,508,368,011.20, 9,818,715,414,271.50 and 3,990,567,741,860.40

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Solution

The fourth proportional to 7,115,508,368,011.20, 9,818,715,414,271.50 and 3,990,567,741,860.40 is: 5,506,598,681,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115,508,368,011.20 : 9,818,715,414,271.50 = 3,990,567,741,860.40 : x
  2. Step 2: Convert to fraction form
    7,115,508,368,011.20/9,818,715,414,271.50 = 3,990,567,741,860.40/x
  3. Step 3: Cross multiply
    7,115,508,368,011.20x = 9,818,715,414,271.50 × 3,990,567,741,860.40
  4. Step 4: Simplify right side
    7,115,508,368,011.20x = 39,182,248,998,699,322,354,696,192
  5. Step 5: Solve for x
    x = 39,182,248,998,699,322,354,696,192/7,115,508,368,011.20
  6. Step 6: Final answer
    x = 5,506,598,681,669.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.