Home / 990,725,575.80-1,484,812,905.30-759,548,740.80

Finding the Fourth Proportional to 990,725,575.80, 1,484,812,905.30 and 759,548,740.80

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Solution

The fourth proportional to 990,725,575.80, 1,484,812,905.30 and 759,548,740.80 is: 1,138,345,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,725,575.80 : 1,484,812,905.30 = 759,548,740.80 : x
  2. Step 2: Convert to fraction form
    990,725,575.80/1,484,812,905.30 = 759,548,740.80/x
  3. Step 3: Cross multiply
    990,725,575.80x = 1,484,812,905.30 × 759,548,740.80
  4. Step 4: Simplify right side
    990,725,575.80x = 1,127,787,772,544,204,544
  5. Step 5: Solve for x
    x = 1,127,787,772,544,204,544/990,725,575.80
  6. Step 6: Final answer
    x = 1,138,345,269.46

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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.