Home / 686,312,566.45-1,029,605,843.33-358,935,462.61

Finding the Fourth Proportional to 686,312,566.45, 1,029,605,843.33 and 358,935,462.61

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Solution

The fourth proportional to 686,312,566.45, 1,029,605,843.33 and 358,935,462.61 is: 538,474,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,312,566.45 : 1,029,605,843.33 = 358,935,462.61 : x
  2. Step 2: Convert to fraction form
    686,312,566.45/1,029,605,843.33 = 358,935,462.61/x
  3. Step 3: Cross multiply
    686,312,566.45x = 1,029,605,843.33 × 358,935,462.61
  4. Step 4: Simplify right side
    686,312,566.45x = 369,562,049,679,818,112
  5. Step 5: Solve for x
    x = 369,562,049,679,818,112/686,312,566.45
  6. Step 6: Final answer
    x = 538,474,840.39

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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.