Home / 448,421,029.68-618,839,384.79-283,348,369.20

Finding the Fourth Proportional to 448,421,029.68, 618,839,384.79 and 283,348,369.20

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Solution

The fourth proportional to 448,421,029.68, 618,839,384.79 and 283,348,369.20 is: 391,032,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,421,029.68 : 618,839,384.79 = 283,348,369.20 : x
  2. Step 2: Convert to fraction form
    448,421,029.68/618,839,384.79 = 283,348,369.20/x
  3. Step 3: Cross multiply
    448,421,029.68x = 618,839,384.79 × 283,348,369.20
  4. Step 4: Simplify right side
    448,421,029.68x = 175,347,130,476,977,760
  5. Step 5: Solve for x
    x = 175,347,130,476,977,760/448,421,029.68
  6. Step 6: Final answer
    x = 391,032,353.24

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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.