Home / 391,373,740.40-540,096,109.25-215,164,733.77

Finding the Fourth Proportional to 391,373,740.40, 540,096,109.25 and 215,164,733.77

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Solution

The fourth proportional to 391,373,740.40, 540,096,109.25 and 215,164,733.77 is: 296,927,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,373,740.40 : 540,096,109.25 = 215,164,733.77 : x
  2. Step 2: Convert to fraction form
    391,373,740.40/540,096,109.25 = 215,164,733.77/x
  3. Step 3: Cross multiply
    391,373,740.40x = 540,096,109.25 × 215,164,733.77
  4. Step 4: Simplify right side
    391,373,740.40x = 116,209,635,554,563,024
  5. Step 5: Solve for x
    x = 116,209,635,554,563,024/391,373,740.40
  6. Step 6: Final answer
    x = 296,927,523.64

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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.