Home / 1,112,058,752.40-1,668,186,157.14-412,558,991.28

Finding the Fourth Proportional to 1,112,058,752.40, 1,668,186,157.14 and 412,558,991.28

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Solution

The fourth proportional to 1,112,058,752.40, 1,668,186,157.14 and 412,558,991.28 is: 618,874,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,058,752.40 : 1,668,186,157.14 = 412,558,991.28 : x
  2. Step 2: Convert to fraction form
    1,112,058,752.40/1,668,186,157.14 = 412,558,991.28/x
  3. Step 3: Cross multiply
    1,112,058,752.40x = 1,668,186,157.14 × 412,558,991.28
  4. Step 4: Simplify right side
    1,112,058,752.40x = 688,225,198,256,937,984
  5. Step 5: Solve for x
    x = 688,225,198,256,937,984/1,112,058,752.40
  6. Step 6: Final answer
    x = 618,874,854.20

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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.