Home / 413,771,210.40-620,569,724.40-209,106,890.40

Finding the Fourth Proportional to 413,771,210.40, 620,569,724.40 and 209,106,890.40

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Solution

The fourth proportional to 413,771,210.40, 620,569,724.40 and 209,106,890.40 is: 313,616,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,771,210.40 : 620,569,724.40 = 209,106,890.40 : x
  2. Step 2: Convert to fraction form
    413,771,210.40/620,569,724.40 = 209,106,890.40/x
  3. Step 3: Cross multiply
    413,771,210.40x = 620,569,724.40 × 209,106,890.40
  4. Step 4: Simplify right side
    413,771,210.40x = 129,765,405,345,669,008
  5. Step 5: Solve for x
    x = 129,765,405,345,669,008/413,771,210.40
  6. Step 6: Final answer
    x = 313,616,322.46

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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.