Home / 279,927,117.42-420,078,129.57-116,165,031.42

Finding the Fourth Proportional to 279,927,117.42, 420,078,129.57 and 116,165,031.42

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Solution

The fourth proportional to 279,927,117.42, 420,078,129.57 and 116,165,031.42 is: 174,325,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,927,117.42 : 420,078,129.57 = 116,165,031.42 : x
  2. Step 2: Convert to fraction form
    279,927,117.42/420,078,129.57 = 116,165,031.42/x
  3. Step 3: Cross multiply
    279,927,117.42x = 420,078,129.57 × 116,165,031.42
  4. Step 4: Simplify right side
    279,927,117.42x = 48,798,389,121,929,176
  5. Step 5: Solve for x
    x = 48,798,389,121,929,176/279,927,117.42
  6. Step 6: Final answer
    x = 174,325,337.15

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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.