Home / 721,635,237,880.40-995,942,001,927.12-428,661,318,210.52

Finding the Fourth Proportional to 721,635,237,880.40, 995,942,001,927.12 and 428,661,318,210.52

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Solution

The fourth proportional to 721,635,237,880.40, 995,942,001,927.12 and 428,661,318,210.52 is: 591,603,332,261.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,635,237,880.40 : 995,942,001,927.12 = 428,661,318,210.52 : x
  2. Step 2: Convert to fraction form
    721,635,237,880.40/995,942,001,927.12 = 428,661,318,210.52/x
  3. Step 3: Cross multiply
    721,635,237,880.40x = 995,942,001,927.12 × 428,661,318,210.52
  4. Step 4: Simplify right side
    721,635,237,880.40x = 426,921,811,407,303,528,677,376
  5. Step 5: Solve for x
    x = 426,921,811,407,303,528,677,376/721,635,237,880.40
  6. Step 6: Final answer
    x = 591,603,332,261.42

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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.