Home / 7,365,600,719.02-10,164,533,069.81-3,978,509,991.31

Finding the Fourth Proportional to 7,365,600,719.02, 10,164,533,069.81 and 3,978,509,991.31

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Solution

The fourth proportional to 7,365,600,719.02, 10,164,533,069.81 and 3,978,509,991.31 is: 5,490,345,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,365,600,719.02 : 10,164,533,069.81 = 3,978,509,991.31 : x
  2. Step 2: Convert to fraction form
    7,365,600,719.02/10,164,533,069.81 = 3,978,509,991.31/x
  3. Step 3: Cross multiply
    7,365,600,719.02x = 10,164,533,069.81 × 3,978,509,991.31
  4. Step 4: Simplify right side
    7,365,600,719.02x = 40,439,696,375,261,159,424
  5. Step 5: Solve for x
    x = 40,439,696,375,261,159,424/7,365,600,719.02
  6. Step 6: Final answer
    x = 5,490,345,990.49

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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.