Home / 1,242,922,505.76-1,715,878,688.04-908,019,016.38

Finding the Fourth Proportional to 1,242,922,505.76, 1,715,878,688.04 and 908,019,016.38

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Solution

The fourth proportional to 1,242,922,505.76, 1,715,878,688.04 and 908,019,016.38 is: 1,253,537,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,922,505.76 : 1,715,878,688.04 = 908,019,016.38 : x
  2. Step 2: Convert to fraction form
    1,242,922,505.76/1,715,878,688.04 = 908,019,016.38/x
  3. Step 3: Cross multiply
    1,242,922,505.76x = 1,715,878,688.04 × 908,019,016.38
  4. Step 4: Simplify right side
    1,242,922,505.76x = 1,558,050,478,541,485,568
  5. Step 5: Solve for x
    x = 1,558,050,478,541,485,568/1,242,922,505.76
  6. Step 6: Final answer
    x = 1,253,537,908.70

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1.5x scale

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.