Home / 1,210,577,968.20-1,815,335,511.30-555,311,215.20

Finding the Fourth Proportional to 1,210,577,968.20, 1,815,335,511.30 and 555,311,215.20

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Solution

The fourth proportional to 1,210,577,968.20, 1,815,335,511.30 and 555,311,215.20 is: 832,723,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,577,968.20 : 1,815,335,511.30 = 555,311,215.20 : x
  2. Step 2: Convert to fraction form
    1,210,577,968.20/1,815,335,511.30 = 555,311,215.20/x
  3. Step 3: Cross multiply
    1,210,577,968.20x = 1,815,335,511.30 × 555,311,215.20
  4. Step 4: Simplify right side
    1,210,577,968.20x = 1,008,076,168,775,716,352
  5. Step 5: Solve for x
    x = 1,008,076,168,775,716,352/1,210,577,968.20
  6. Step 6: Final answer
    x = 832,723,042.43

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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.