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Finding the Fourth Proportional to 628,549,446.65, 867,398,473.71 and 364,384,572.10

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Solution

The fourth proportional to 628,549,446.65, 867,398,473.71 and 364,384,572.10 is: 502,850,847.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,549,446.65 : 867,398,473.71 = 364,384,572.10 : x
  2. Step 2: Convert to fraction form
    628,549,446.65/867,398,473.71 = 364,384,572.10/x
  3. Step 3: Cross multiply
    628,549,446.65x = 867,398,473.71 × 364,384,572.10
  4. Step 4: Simplify right side
    628,549,446.65x = 316,066,621,680,843,008
  5. Step 5: Solve for x
    x = 316,066,621,680,843,008/628,549,446.65
  6. Step 6: Final answer
    x = 502,850,847.09

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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.