Home / 280,826,309.40-421,239,464.10-127,771,301.40

Finding the Fourth Proportional to 280,826,309.40, 421,239,464.10 and 127,771,301.40

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Solution

The fourth proportional to 280,826,309.40, 421,239,464.10 and 127,771,301.40 is: 191,656,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,826,309.40 : 421,239,464.10 = 127,771,301.40 : x
  2. Step 2: Convert to fraction form
    280,826,309.40/421,239,464.10 = 127,771,301.40/x
  3. Step 3: Cross multiply
    280,826,309.40x = 421,239,464.10 × 127,771,301.40
  4. Step 4: Simplify right side
    280,826,309.40x = 53,822,314,529,095,584
  5. Step 5: Solve for x
    x = 53,822,314,529,095,584/280,826,309.40
  6. Step 6: Final answer
    x = 191,656,952.10

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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.