Home / 211,035,607.20-316,542,913.20-108,809,978.40

Finding the Fourth Proportional to 211,035,607.20, 316,542,913.20 and 108,809,978.40

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Solution

The fourth proportional to 211,035,607.20, 316,542,913.20 and 108,809,978.40 is: 163,209,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,035,607.20 : 316,542,913.20 = 108,809,978.40 : x
  2. Step 2: Convert to fraction form
    211,035,607.20/316,542,913.20 = 108,809,978.40/x
  3. Step 3: Cross multiply
    211,035,607.20x = 316,542,913.20 × 108,809,978.40
  4. Step 4: Simplify right side
    211,035,607.20x = 34,443,027,547,965,076
  5. Step 5: Solve for x
    x = 34,443,027,547,965,076/211,035,607.20
  6. Step 6: Final answer
    x = 163,209,555.04

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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.