Home / 989,405,487.63-1,365,909,662.16-762,849,654.84

Finding the Fourth Proportional to 989,405,487.63, 1,365,909,662.16 and 762,849,654.84

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Solution

The fourth proportional to 989,405,487.63, 1,365,909,662.16 and 762,849,654.84 is: 1,053,141,232.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,405,487.63 : 1,365,909,662.16 = 762,849,654.84 : x
  2. Step 2: Convert to fraction form
    989,405,487.63/1,365,909,662.16 = 762,849,654.84/x
  3. Step 3: Cross multiply
    989,405,487.63x = 1,365,909,662.16 × 762,849,654.84
  4. Step 4: Simplify right side
    989,405,487.63x = 1,041,983,714,321,377,152
  5. Step 5: Solve for x
    x = 1,041,983,714,321,377,152/989,405,487.63
  6. Step 6: Final answer
    x = 1,053,141,232.13

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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.