Home / 387,072,820.20-580,161,332.70-156,928,103.40

Finding the Fourth Proportional to 387,072,820.20, 580,161,332.70 and 156,928,103.40

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Solution

The fourth proportional to 387,072,820.20, 580,161,332.70 and 156,928,103.40 is: 235,210,567.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,820.20 : 580,161,332.70 = 156,928,103.40 : x
  2. Step 2: Convert to fraction form
    387,072,820.20/580,161,332.70 = 156,928,103.40/x
  3. Step 3: Cross multiply
    387,072,820.20x = 580,161,332.70 × 156,928,103.40
  4. Step 4: Simplify right side
    387,072,820.20x = 91,043,617,606,627,408
  5. Step 5: Solve for x
    x = 91,043,617,606,627,408/387,072,820.20
  6. Step 6: Final answer
    x = 235,210,567.25

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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.