Home / 715,335,878.56-1,072,239,903.60-407,966,150.56

Finding the Fourth Proportional to 715,335,878.56, 1,072,239,903.60 and 407,966,150.56

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Solution

The fourth proportional to 715,335,878.56, 1,072,239,903.60 and 407,966,150.56 is: 611,513,554.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,335,878.56 : 1,072,239,903.60 = 407,966,150.56 : x
  2. Step 2: Convert to fraction form
    715,335,878.56/1,072,239,903.60 = 407,966,150.56/x
  3. Step 3: Cross multiply
    715,335,878.56x = 1,072,239,903.60 × 407,966,150.56
  4. Step 4: Simplify right side
    715,335,878.56x = 437,437,585,948,517,504
  5. Step 5: Solve for x
    x = 437,437,585,948,517,504/715,335,878.56
  6. Step 6: Final answer
    x = 611,513,554.76

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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.