Home / 443,208,763.80-664,813,145.70-407,495,928.60

Finding the Fourth Proportional to 443,208,763.80, 664,813,145.70 and 407,495,928.60

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Solution

The fourth proportional to 443,208,763.80, 664,813,145.70 and 407,495,928.60 is: 611,243,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,208,763.80 : 664,813,145.70 = 407,495,928.60 : x
  2. Step 2: Convert to fraction form
    443,208,763.80/664,813,145.70 = 407,495,928.60/x
  3. Step 3: Cross multiply
    443,208,763.80x = 664,813,145.70 × 407,495,928.60
  4. Step 4: Simplify right side
    443,208,763.80x = 270,908,650,152,508,640
  5. Step 5: Solve for x
    x = 270,908,650,152,508,640/443,208,763.80
  6. Step 6: Final answer
    x = 611,243,892.90

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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.