Home / 291,090,168.40-436,635,252.60-97,007,915.20

Finding the Fourth Proportional to 291,090,168.40, 436,635,252.60 and 97,007,915.20

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Solution

The fourth proportional to 291,090,168.40, 436,635,252.60 and 97,007,915.20 is: 145,511,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,090,168.40 : 436,635,252.60 = 97,007,915.20 : x
  2. Step 2: Convert to fraction form
    291,090,168.40/436,635,252.60 = 97,007,915.20/x
  3. Step 3: Cross multiply
    291,090,168.40x = 436,635,252.60 × 97,007,915.20
  4. Step 4: Simplify right side
    291,090,168.40x = 42,357,075,557,551,384
  5. Step 5: Solve for x
    x = 42,357,075,557,551,384/291,090,168.40
  6. Step 6: Final answer
    x = 145,511,872.80

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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.