Home / 218,329,786,937.07-301,310,697,045.12-120,669,326,967.28

Finding the Fourth Proportional to 218,329,786,937.07, 301,310,697,045.12 and 120,669,326,967.28

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Solution

The fourth proportional to 218,329,786,937.07, 301,310,697,045.12 and 120,669,326,967.28 is: 166,532,288,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,329,786,937.07 : 301,310,697,045.12 = 120,669,326,967.28 : x
  2. Step 2: Convert to fraction form
    218,329,786,937.07/301,310,697,045.12 = 120,669,326,967.28/x
  3. Step 3: Cross multiply
    218,329,786,937.07x = 301,310,697,045.12 × 120,669,326,967.28
  4. Step 4: Simplify right side
    218,329,786,937.07x = 36,358,959,020,476,630,827,008
  5. Step 5: Solve for x
    x = 36,358,959,020,476,630,827,008/218,329,786,937.07
  6. Step 6: Final answer
    x = 166,532,288,289.90

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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.