Home / 715,815,576.77-987,810,017.07-414,413,597.36

Finding the Fourth Proportional to 715,815,576.77, 987,810,017.07 and 414,413,597.36

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Solution

The fourth proportional to 715,815,576.77, 987,810,017.07 and 414,413,597.36 is: 571,881,803.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,815,576.77 : 987,810,017.07 = 414,413,597.36 : x
  2. Step 2: Convert to fraction form
    715,815,576.77/987,810,017.07 = 414,413,597.36/x
  3. Step 3: Cross multiply
    715,815,576.77x = 987,810,017.07 × 414,413,597.36
  4. Step 4: Simplify right side
    715,815,576.77x = 409,361,902,684,691,264
  5. Step 5: Solve for x
    x = 409,361,902,684,691,264/715,815,576.77
  6. Step 6: Final answer
    x = 571,881,803.04

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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.