Home / 509,868,057.20-764,802,085.80-470,753,999.60

Finding the Fourth Proportional to 509,868,057.20, 764,802,085.80 and 470,753,999.60

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Solution

The fourth proportional to 509,868,057.20, 764,802,085.80 and 470,753,999.60 is: 706,130,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,868,057.20 : 764,802,085.80 = 470,753,999.60 : x
  2. Step 2: Convert to fraction form
    509,868,057.20/764,802,085.80 = 470,753,999.60/x
  3. Step 3: Cross multiply
    509,868,057.20x = 764,802,085.80 × 470,753,999.60
  4. Step 4: Simplify right side
    509,868,057.20x = 360,033,640,792,772,352
  5. Step 5: Solve for x
    x = 360,033,640,792,772,352/509,868,057.20
  6. Step 6: Final answer
    x = 706,130,999.40

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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.