Home / 391,709,337.60-587,586,124.80-119,088,998.40

Finding the Fourth Proportional to 391,709,337.60, 587,586,124.80 and 119,088,998.40

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Solution

The fourth proportional to 391,709,337.60, 587,586,124.80 and 119,088,998.40 is: 178,640,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,709,337.60 : 587,586,124.80 = 119,088,998.40 : x
  2. Step 2: Convert to fraction form
    391,709,337.60/587,586,124.80 = 119,088,998.40/x
  3. Step 3: Cross multiply
    391,709,337.60x = 587,586,124.80 × 119,088,998.40
  4. Step 4: Simplify right side
    391,709,337.60x = 69,975,043,076,169,400
  5. Step 5: Solve for x
    x = 69,975,043,076,169,400/391,709,337.60
  6. Step 6: Final answer
    x = 178,640,222.12

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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.