Home / 663,615,999.40-995,423,999.10-526,559,333.80

Finding the Fourth Proportional to 663,615,999.40, 995,423,999.10 and 526,559,333.80

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Solution

The fourth proportional to 663,615,999.40, 995,423,999.10 and 526,559,333.80 is: 789,839,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,615,999.40 : 995,423,999.10 = 526,559,333.80 : x
  2. Step 2: Convert to fraction form
    663,615,999.40/995,423,999.10 = 526,559,333.80/x
  3. Step 3: Cross multiply
    663,615,999.40x = 995,423,999.10 × 526,559,333.80
  4. Step 4: Simplify right side
    663,615,999.40x = 524,149,797,814,627,840
  5. Step 5: Solve for x
    x = 524,149,797,814,627,840/663,615,999.40
  6. Step 6: Final answer
    x = 789,839,000.70

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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.