Home / 3,891,971,878.70-5,838,708,921.32-1,271,071,384.88

Finding the Fourth Proportional to 3,891,971,878.70, 5,838,708,921.32 and 1,271,071,384.88

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Solution

The fourth proportional to 3,891,971,878.70, 5,838,708,921.32 and 1,271,071,384.88 is: 1,906,852,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891,971,878.70 : 5,838,708,921.32 = 1,271,071,384.88 : x
  2. Step 2: Convert to fraction form
    3,891,971,878.70/5,838,708,921.32 = 1,271,071,384.88/x
  3. Step 3: Cross multiply
    3,891,971,878.70x = 5,838,708,921.32 × 1,271,071,384.88
  4. Step 4: Simplify right side
    3,891,971,878.70x = 7,421,415,834,533,424,128
  5. Step 5: Solve for x
    x = 7,421,415,834,533,424,128/3,891,971,878.70
  6. Step 6: Final answer
    x = 1,906,852,378.65

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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.