Home / 7,881,484,911.78-10,876,442,079.62-4,448,905,899.12

Finding the Fourth Proportional to 7,881,484,911.78, 10,876,442,079.62 and 4,448,905,899.12

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Solution

The fourth proportional to 7,881,484,911.78, 10,876,442,079.62 and 4,448,905,899.12 is: 6,139,486,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,484,911.78 : 10,876,442,079.62 = 4,448,905,899.12 : x
  2. Step 2: Convert to fraction form
    7,881,484,911.78/10,876,442,079.62 = 4,448,905,899.12/x
  3. Step 3: Cross multiply
    7,881,484,911.78x = 10,876,442,079.62 × 4,448,905,899.12
  4. Step 4: Simplify right side
    7,881,484,911.78x = 48,388,267,329,458,421,760
  5. Step 5: Solve for x
    x = 48,388,267,329,458,421,760/7,881,484,911.78
  6. Step 6: Final answer
    x = 6,139,486,133.78

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1.5x scale

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.