Home / 1,190,917,663.94-1,785,210,095.90-666,542,831.78

Finding the Fourth Proportional to 1,190,917,663.94, 1,785,210,095.90 and 666,542,831.78

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Solution

The fourth proportional to 1,190,917,663.94, 1,785,210,095.90 and 666,542,831.78 is: 999,161,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,917,663.94 : 1,785,210,095.90 = 666,542,831.78 : x
  2. Step 2: Convert to fraction form
    1,190,917,663.94/1,785,210,095.90 = 666,542,831.78/x
  3. Step 3: Cross multiply
    1,190,917,663.94x = 1,785,210,095.90 × 666,542,831.78
  4. Step 4: Simplify right side
    1,190,917,663.94x = 1,189,918,992,640,098,560
  5. Step 5: Solve for x
    x = 1,189,918,992,640,098,560/1,190,917,663.94
  6. Step 6: Final answer
    x = 999,161,427.08

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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.