Home / 309,503,943.92-426,938,075.16-193,408,886

Finding the Fourth Proportional to 309,503,943.92, 426,938,075.16 and 193,408,886

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Solution

The fourth proportional to 309,503,943.92, 426,938,075.16 and 193,408,886 is: 266,793,425.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,503,943.92 : 426,938,075.16 = 193,408,886 : x
  2. Step 2: Convert to fraction form
    309,503,943.92/426,938,075.16 = 193,408,886/x
  3. Step 3: Cross multiply
    309,503,943.92x = 426,938,075.16 × 193,408,886
  4. Step 4: Simplify right side
    309,503,943.92x = 82,573,617,507,679,872
  5. Step 5: Solve for x
    x = 82,573,617,507,679,872/309,503,943.92
  6. Step 6: Final answer
    x = 266,793,425.83

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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.