Home / 5,213,271,342.40-7,820,284,927.20-3,138,525,678.40

Finding the Fourth Proportional to 5,213,271,342.40, 7,820,284,927.20 and 3,138,525,678.40

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Solution

The fourth proportional to 5,213,271,342.40, 7,820,284,927.20 and 3,138,525,678.40 is: 4,708,016,031.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213,271,342.40 : 7,820,284,927.20 = 3,138,525,678.40 : x
  2. Step 2: Convert to fraction form
    5,213,271,342.40/7,820,284,927.20 = 3,138,525,678.40/x
  3. Step 3: Cross multiply
    5,213,271,342.40x = 7,820,284,927.20 × 3,138,525,678.40
  4. Step 4: Simplify right side
    5,213,271,342.40x = 24,544,165,056,421,675,008
  5. Step 5: Solve for x
    x = 24,544,165,056,421,675,008/5,213,271,342.40
  6. Step 6: Final answer
    x = 4,708,016,031.47

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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.