Home / 104,976,015.40-157,464,023.10-66,428,828.20

Finding the Fourth Proportional to 104,976,015.40, 157,464,023.10 and 66,428,828.20

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Solution

The fourth proportional to 104,976,015.40, 157,464,023.10 and 66,428,828.20 is: 99,643,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976,015.40 : 157,464,023.10 = 66,428,828.20 : x
  2. Step 2: Convert to fraction form
    104,976,015.40/157,464,023.10 = 66,428,828.20/x
  3. Step 3: Cross multiply
    104,976,015.40x = 157,464,023.10 × 66,428,828.20
  4. Step 4: Simplify right side
    104,976,015.40x = 10,460,150,538,190,732
  5. Step 5: Solve for x
    x = 10,460,150,538,190,732/104,976,015.40
  6. Step 6: Final answer
    x = 99,643,242.30

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1.5x scale

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.