Home / 645,129,215.40-967,693,823.10-354,891,570.60

Finding the Fourth Proportional to 645,129,215.40, 967,693,823.10 and 354,891,570.60

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Solution

The fourth proportional to 645,129,215.40, 967,693,823.10 and 354,891,570.60 is: 532,337,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,129,215.40 : 967,693,823.10 = 354,891,570.60 : x
  2. Step 2: Convert to fraction form
    645,129,215.40/967,693,823.10 = 354,891,570.60/x
  3. Step 3: Cross multiply
    645,129,215.40x = 967,693,823.10 × 354,891,570.60
  4. Step 4: Simplify right side
    645,129,215.40x = 343,426,380,739,877,568
  5. Step 5: Solve for x
    x = 343,426,380,739,877,568/645,129,215.40
  6. Step 6: Final answer
    x = 532,337,355.90

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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.