Home / 727,668,023.40-1,091,502,035.10-290,752,662.60

Finding the Fourth Proportional to 727,668,023.40, 1,091,502,035.10 and 290,752,662.60

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Solution

The fourth proportional to 727,668,023.40, 1,091,502,035.10 and 290,752,662.60 is: 436,128,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,668,023.40 : 1,091,502,035.10 = 290,752,662.60 : x
  2. Step 2: Convert to fraction form
    727,668,023.40/1,091,502,035.10 = 290,752,662.60/x
  3. Step 3: Cross multiply
    727,668,023.40x = 1,091,502,035.10 × 290,752,662.60
  4. Step 4: Simplify right side
    727,668,023.40x = 317,357,122,938,643,648
  5. Step 5: Solve for x
    x = 317,357,122,938,643,648/727,668,023.40
  6. Step 6: Final answer
    x = 436,128,993.90

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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.