Home / 721,160,920.50-1,075,678,127.43-654,956,408.82

Finding the Fourth Proportional to 721,160,920.50, 1,075,678,127.43 and 654,956,408.82

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Solution

The fourth proportional to 721,160,920.50, 1,075,678,127.43 and 654,956,408.82 is: 976,927,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,160,920.50 : 1,075,678,127.43 = 654,956,408.82 : x
  2. Step 2: Convert to fraction form
    721,160,920.50/1,075,678,127.43 = 654,956,408.82/x
  3. Step 3: Cross multiply
    721,160,920.50x = 1,075,678,127.43 × 654,956,408.82
  4. Step 4: Simplify right side
    721,160,920.50x = 704,522,283,383,985,408
  5. Step 5: Solve for x
    x = 704,522,283,383,985,408/721,160,920.50
  6. Step 6: Final answer
    x = 976,927,982.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.