Home / 489,974,625.80-734,961,938.70-423,461,832.20

Finding the Fourth Proportional to 489,974,625.80, 734,961,938.70 and 423,461,832.20

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Solution

The fourth proportional to 489,974,625.80, 734,961,938.70 and 423,461,832.20 is: 635,192,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,974,625.80 : 734,961,938.70 = 423,461,832.20 : x
  2. Step 2: Convert to fraction form
    489,974,625.80/734,961,938.70 = 423,461,832.20/x
  3. Step 3: Cross multiply
    489,974,625.80x = 734,961,938.70 × 423,461,832.20
  4. Step 4: Simplify right side
    489,974,625.80x = 311,228,329,159,166,080
  5. Step 5: Solve for x
    x = 311,228,329,159,166,080/489,974,625.80
  6. Step 6: Final answer
    x = 635,192,748.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.