Home / 709,996,913.80-979,893,074.08-408,576,030.72

Finding the Fourth Proportional to 709,996,913.80, 979,893,074.08 and 408,576,030.72

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Solution

The fourth proportional to 709,996,913.80, 979,893,074.08 and 408,576,030.72 is: 563,890,933.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,996,913.80 : 979,893,074.08 = 408,576,030.72 : x
  2. Step 2: Convert to fraction form
    709,996,913.80/979,893,074.08 = 408,576,030.72/x
  3. Step 3: Cross multiply
    709,996,913.80x = 979,893,074.08 × 408,576,030.72
  4. Step 4: Simplify right side
    709,996,913.80x = 400,360,822,737,625,344
  5. Step 5: Solve for x
    x = 400,360,822,737,625,344/709,996,913.80
  6. Step 6: Final answer
    x = 563,890,933.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.