Home / 377,081,397.20-520,311,507.72-212,059,125.20

Finding the Fourth Proportional to 377,081,397.20, 520,311,507.72 and 212,059,125.20

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Solution

The fourth proportional to 377,081,397.20, 520,311,507.72 and 212,059,125.20 is: 292,607,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,081,397.20 : 520,311,507.72 = 212,059,125.20 : x
  2. Step 2: Convert to fraction form
    377,081,397.20/520,311,507.72 = 212,059,125.20/x
  3. Step 3: Cross multiply
    377,081,397.20x = 520,311,507.72 × 212,059,125.20
  4. Step 4: Simplify right side
    377,081,397.20x = 110,336,803,158,596,240
  5. Step 5: Solve for x
    x = 110,336,803,158,596,240/377,081,397.20
  6. Step 6: Final answer
    x = 292,607,389.22

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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.