Home / 1,528,874,998.20-2,293,312,497.30-838,515,497.40

Finding the Fourth Proportional to 1,528,874,998.20, 2,293,312,497.30 and 838,515,497.40

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Solution

The fourth proportional to 1,528,874,998.20, 2,293,312,497.30 and 838,515,497.40 is: 1,257,773,246.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,874,998.20 : 2,293,312,497.30 = 838,515,497.40 : x
  2. Step 2: Convert to fraction form
    1,528,874,998.20/2,293,312,497.30 = 838,515,497.40/x
  3. Step 3: Cross multiply
    1,528,874,998.20x = 2,293,312,497.30 × 838,515,497.40
  4. Step 4: Simplify right side
    1,528,874,998.20x = 1,922,978,069,367,145,728
  5. Step 5: Solve for x
    x = 1,922,978,069,367,145,728/1,528,874,998.20
  6. Step 6: Final answer
    x = 1,257,773,246.10

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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.