Home / 1,112,058,750.90-1,668,186,154.89-412,558,989.78

Finding the Fourth Proportional to 1,112,058,750.90, 1,668,186,154.89 and 412,558,989.78

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Solution

The fourth proportional to 1,112,058,750.90, 1,668,186,154.89 and 412,558,989.78 is: 618,874,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,058,750.90 : 1,668,186,154.89 = 412,558,989.78 : x
  2. Step 2: Convert to fraction form
    1,112,058,750.90/1,668,186,154.89 = 412,558,989.78/x
  3. Step 3: Cross multiply
    1,112,058,750.90x = 1,668,186,154.89 × 412,558,989.78
  4. Step 4: Simplify right side
    1,112,058,750.90x = 688,225,194,826,401,024
  5. Step 5: Solve for x
    x = 688,225,194,826,401,024/1,112,058,750.90
  6. Step 6: Final answer
    x = 618,874,851.95

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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.