Home / 1,276,968,835.54-1,914,533,966.97-784,664,971.45

Finding the Fourth Proportional to 1,276,968,835.54, 1,914,533,966.97 and 784,664,971.45

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Solution

The fourth proportional to 1,276,968,835.54, 1,914,533,966.97 and 784,664,971.45 is: 1,176,432,579.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,968,835.54 : 1,914,533,966.97 = 784,664,971.45 : x
  2. Step 2: Convert to fraction form
    1,276,968,835.54/1,914,533,966.97 = 784,664,971.45/x
  3. Step 3: Cross multiply
    1,276,968,835.54x = 1,914,533,966.97 × 784,664,971.45
  4. Step 4: Simplify right side
    1,276,968,835.54x = 1,502,267,740,532,570,368
  5. Step 5: Solve for x
    x = 1,502,267,740,532,570,368/1,276,968,835.54
  6. Step 6: Final answer
    x = 1,176,432,579.03

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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.