Home / 889,237,686.51-1,227,155,212.40-492,767,298.54

Finding the Fourth Proportional to 889,237,686.51, 1,227,155,212.40 and 492,767,298.54

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Solution

The fourth proportional to 889,237,686.51, 1,227,155,212.40 and 492,767,298.54 is: 680,022,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,237,686.51 : 1,227,155,212.40 = 492,767,298.54 : x
  2. Step 2: Convert to fraction form
    889,237,686.51/1,227,155,212.40 = 492,767,298.54/x
  3. Step 3: Cross multiply
    889,237,686.51x = 1,227,155,212.40 × 492,767,298.54
  4. Step 4: Simplify right side
    889,237,686.51x = 604,701,958,901,164,032
  5. Step 5: Solve for x
    x = 604,701,958,901,164,032/889,237,686.51
  6. Step 6: Final answer
    x = 680,022,864.61

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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.