Home / 391,068,001.10-586,602,001.65-209,669,473.10

Finding the Fourth Proportional to 391,068,001.10, 586,602,001.65 and 209,669,473.10

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Solution

The fourth proportional to 391,068,001.10, 586,602,001.65 and 209,669,473.10 is: 314,504,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,068,001.10 : 586,602,001.65 = 209,669,473.10 : x
  2. Step 2: Convert to fraction form
    391,068,001.10/586,602,001.65 = 209,669,473.10/x
  3. Step 3: Cross multiply
    391,068,001.10x = 586,602,001.65 × 209,669,473.10
  4. Step 4: Simplify right side
    391,068,001.10x = 122,992,532,605,360,816
  5. Step 5: Solve for x
    x = 122,992,532,605,360,816/391,068,001.10
  6. Step 6: Final answer
    x = 314,504,209.65

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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.