Home / 1,167,799,788.60-1,611,390,346.74-709,270,725.49

Finding the Fourth Proportional to 1,167,799,788.60, 1,611,390,346.74 and 709,270,725.49

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Solution

The fourth proportional to 1,167,799,788.60, 1,611,390,346.74 and 709,270,725.49 is: 978,688,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,799,788.60 : 1,611,390,346.74 = 709,270,725.49 : x
  2. Step 2: Convert to fraction form
    1,167,799,788.60/1,611,390,346.74 = 709,270,725.49/x
  3. Step 3: Cross multiply
    1,167,799,788.60x = 1,611,390,346.74 × 709,270,725.49
  4. Step 4: Simplify right side
    1,167,799,788.60x = 1,142,912,000,271,805,568
  5. Step 5: Solve for x
    x = 1,142,912,000,271,805,568/1,167,799,788.60
  6. Step 6: Final answer
    x = 978,688,308.93

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Why These Related Problems?

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