Home / 945,608,428.80-1,418,412,643.20-299,376,172.80

Finding the Fourth Proportional to 945,608,428.80, 1,418,412,643.20 and 299,376,172.80

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Solution

The fourth proportional to 945,608,428.80, 1,418,412,643.20 and 299,376,172.80 is: 449,064,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,608,428.80 : 1,418,412,643.20 = 299,376,172.80 : x
  2. Step 2: Convert to fraction form
    945,608,428.80/1,418,412,643.20 = 299,376,172.80/x
  3. Step 3: Cross multiply
    945,608,428.80x = 1,418,412,643.20 × 299,376,172.80
  4. Step 4: Simplify right side
    945,608,428.80x = 424,638,948,572,347,968
  5. Step 5: Solve for x
    x = 424,638,948,572,347,968/945,608,428.80
  6. Step 6: Final answer
    x = 449,064,259.20

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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.