Home / 689,752,401.60-1,035,026,733.60-258,974,443.20

Finding the Fourth Proportional to 689,752,401.60, 1,035,026,733.60 and 258,974,443.20

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Solution

The fourth proportional to 689,752,401.60, 1,035,026,733.60 and 258,974,443.20 is: 388,611,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,752,401.60 : 1,035,026,733.60 = 258,974,443.20 : x
  2. Step 2: Convert to fraction form
    689,752,401.60/1,035,026,733.60 = 258,974,443.20/x
  3. Step 3: Cross multiply
    689,752,401.60x = 1,035,026,733.60 × 258,974,443.20
  4. Step 4: Simplify right side
    689,752,401.60x = 268,045,472,031,174,720
  5. Step 5: Solve for x
    x = 268,045,472,031,174,720/689,752,401.60
  6. Step 6: Final answer
    x = 388,611,147.14

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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.