Home / 391,537,289.89-540,168,541.72-224,184,118.69

Finding the Fourth Proportional to 391,537,289.89, 540,168,541.72 and 224,184,118.69

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Solution

The fourth proportional to 391,537,289.89, 540,168,541.72 and 224,184,118.69 is: 309,286,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,537,289.89 : 540,168,541.72 = 224,184,118.69 : x
  2. Step 2: Convert to fraction form
    391,537,289.89/540,168,541.72 = 224,184,118.69/x
  3. Step 3: Cross multiply
    391,537,289.89x = 540,168,541.72 × 224,184,118.69
  4. Step 4: Simplify right side
    391,537,289.89x = 121,097,208,469,560,704
  5. Step 5: Solve for x
    x = 121,097,208,469,560,704/391,537,289.89
  6. Step 6: Final answer
    x = 309,286,526.72

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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.