Home / 991,628,941,458.40-1,485,239,420,072.40-859,389,414,546.40

Finding the Fourth Proportional to 991,628,941,458.40, 1,485,239,420,072.40 and 859,389,414,546.40

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Solution

The fourth proportional to 991,628,941,458.40, 1,485,239,420,072.40 and 859,389,414,546.40 is: 1,287,174,044,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,628,941,458.40 : 1,485,239,420,072.40 = 859,389,414,546.40 : x
  2. Step 2: Convert to fraction form
    991,628,941,458.40/1,485,239,420,072.40 = 859,389,414,546.40/x
  3. Step 3: Cross multiply
    991,628,941,458.40x = 1,485,239,420,072.40 × 859,389,414,546.40
  4. Step 4: Simplify right side
    991,628,941,458.40x = 1,276,399,035,677,254,577,291,264
  5. Step 5: Solve for x
    x = 1,276,399,035,677,254,577,291,264/991,628,941,458.40
  6. Step 6: Final answer
    x = 1,287,174,044,960.85

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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.