Home / 358,971,009.85-495,418,071.45-210,416,946.27

Finding the Fourth Proportional to 358,971,009.85, 495,418,071.45 and 210,416,946.27

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Solution

The fourth proportional to 358,971,009.85, 495,418,071.45 and 210,416,946.27 is: 290,397,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,971,009.85 : 495,418,071.45 = 210,416,946.27 : x
  2. Step 2: Convert to fraction form
    358,971,009.85/495,418,071.45 = 210,416,946.27/x
  3. Step 3: Cross multiply
    358,971,009.85x = 495,418,071.45 × 210,416,946.27
  4. Step 4: Simplify right side
    358,971,009.85x = 104,244,357,721,481,680
  5. Step 5: Solve for x
    x = 104,244,357,721,481,680/358,971,009.85
  6. Step 6: Final answer
    x = 290,397,705.83

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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.