Home / 426,680,595.81-640,021,140.97-119,972,708.69

Finding the Fourth Proportional to 426,680,595.81, 640,021,140.97 and 119,972,708.69

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Solution

The fourth proportional to 426,680,595.81, 640,021,140.97 and 119,972,708.69 is: 179,959,132.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,680,595.81 : 640,021,140.97 = 119,972,708.69 : x
  2. Step 2: Convert to fraction form
    426,680,595.81/640,021,140.97 = 119,972,708.69/x
  3. Step 3: Cross multiply
    426,680,595.81x = 640,021,140.97 × 119,972,708.69
  4. Step 4: Simplify right side
    426,680,595.81x = 76,785,069,897,535,200
  5. Step 5: Solve for x
    x = 76,785,069,897,535,200/426,680,595.81
  6. Step 6: Final answer
    x = 179,959,132.55

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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.