Home / 942,190,389.28-1,300,232,359.08-518,843,418.28

Finding the Fourth Proportional to 942,190,389.28, 1,300,232,359.08 and 518,843,418.28

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Solution

The fourth proportional to 942,190,389.28, 1,300,232,359.08 and 518,843,418.28 is: 716,009,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,190,389.28 : 1,300,232,359.08 = 518,843,418.28 : x
  2. Step 2: Convert to fraction form
    942,190,389.28/1,300,232,359.08 = 518,843,418.28/x
  3. Step 3: Cross multiply
    942,190,389.28x = 1,300,232,359.08 × 518,843,418.28
  4. Step 4: Simplify right side
    942,190,389.28x = 674,617,001,743,335,552
  5. Step 5: Solve for x
    x = 674,617,001,743,335,552/942,190,389.28
  6. Step 6: Final answer
    x = 716,009,215.78

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1.5x scale

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.