Home / 659,026,096.32-909,395,901.75-391,055,751.51

Finding the Fourth Proportional to 659,026,096.32, 909,395,901.75 and 391,055,751.51

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Solution

The fourth proportional to 659,026,096.32, 909,395,901.75 and 391,055,751.51 is: 539,621,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,026,096.32 : 909,395,901.75 = 391,055,751.51 : x
  2. Step 2: Convert to fraction form
    659,026,096.32/909,395,901.75 = 391,055,751.51/x
  3. Step 3: Cross multiply
    659,026,096.32x = 909,395,901.75 × 391,055,751.51
  4. Step 4: Simplify right side
    659,026,096.32x = 355,624,497,778,960,384
  5. Step 5: Solve for x
    x = 355,624,497,778,960,384/659,026,096.32
  6. Step 6: Final answer
    x = 539,621,268.06

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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.