Home / 387,072,812.20-580,161,320.70-156,928,095.40

Finding the Fourth Proportional to 387,072,812.20, 580,161,320.70 and 156,928,095.40

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Solution

The fourth proportional to 387,072,812.20, 580,161,320.70 and 156,928,095.40 is: 235,210,555.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,812.20 : 580,161,320.70 = 156,928,095.40 : x
  2. Step 2: Convert to fraction form
    387,072,812.20/580,161,320.70 = 156,928,095.40/x
  3. Step 3: Cross multiply
    387,072,812.20x = 580,161,320.70 × 156,928,095.40
  4. Step 4: Simplify right side
    387,072,812.20x = 91,043,611,082,199,600
  5. Step 5: Solve for x
    x = 91,043,611,082,199,600/387,072,812.20
  6. Step 6: Final answer
    x = 235,210,555.26

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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.