Home / 449,312,511-620,039,717.06-251,075,634.78

Finding the Fourth Proportional to 449,312,511, 620,039,717.06 and 251,075,634.78

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Solution

The fourth proportional to 449,312,511, 620,039,717.06 and 251,075,634.78 is: 346,477,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,312,511 : 620,039,717.06 = 251,075,634.78 : x
  2. Step 2: Convert to fraction form
    449,312,511/620,039,717.06 = 251,075,634.78/x
  3. Step 3: Cross multiply
    449,312,511x = 620,039,717.06 × 251,075,634.78
  4. Step 4: Simplify right side
    449,312,511x = 155,676,865,549,651,072
  5. Step 5: Solve for x
    x = 155,676,865,549,651,072/449,312,511
  6. Step 6: Final answer
    x = 346,477,922.91

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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.