Home / 779,637,838.98-1,075,900,217.79-449,612,977.98

Finding the Fourth Proportional to 779,637,838.98, 1,075,900,217.79 and 449,612,977.98

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Solution

The fourth proportional to 779,637,838.98, 1,075,900,217.79 and 449,612,977.98 is: 620,465,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,637,838.98 : 1,075,900,217.79 = 449,612,977.98 : x
  2. Step 2: Convert to fraction form
    779,637,838.98/1,075,900,217.79 = 449,612,977.98/x
  3. Step 3: Cross multiply
    779,637,838.98x = 1,075,900,217.79 × 449,612,977.98
  4. Step 4: Simplify right side
    779,637,838.98x = 483,738,700,929,892,480
  5. Step 5: Solve for x
    x = 483,738,700,929,892,480/779,637,838.98
  6. Step 6: Final answer
    x = 620,465,909.61

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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.