Home / 278,577,388.22-384,432,485.85-153,126,899.64

Finding the Fourth Proportional to 278,577,388.22, 384,432,485.85 and 153,126,899.64

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Solution

The fourth proportional to 278,577,388.22, 384,432,485.85 and 153,126,899.64 is: 211,312,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,577,388.22 : 384,432,485.85 = 153,126,899.64 : x
  2. Step 2: Convert to fraction form
    278,577,388.22/384,432,485.85 = 153,126,899.64/x
  3. Step 3: Cross multiply
    278,577,388.22x = 384,432,485.85 × 153,126,899.64
  4. Step 4: Simplify right side
    278,577,388.22x = 58,866,954,679,108,672
  5. Step 5: Solve for x
    x = 58,866,954,679,108,672/278,577,388.22
  6. Step 6: Final answer
    x = 211,312,752.47

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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.