Home / 752,357,144.40-1,128,088,645.32-286,052,701.88

Finding the Fourth Proportional to 752,357,144.40, 1,128,088,645.32 and 286,052,701.88

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Solution

The fourth proportional to 752,357,144.40, 1,128,088,645.32 and 286,052,701.88 is: 428,909,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,357,144.40 : 1,128,088,645.32 = 286,052,701.88 : x
  2. Step 2: Convert to fraction form
    752,357,144.40/1,128,088,645.32 = 286,052,701.88/x
  3. Step 3: Cross multiply
    752,357,144.40x = 1,128,088,645.32 × 286,052,701.88
  4. Step 4: Simplify right side
    752,357,144.40x = 322,692,804,953,934,976
  5. Step 5: Solve for x
    x = 322,692,804,953,934,976/752,357,144.40
  6. Step 6: Final answer
    x = 428,909,072.45

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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.