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Finding the Fourth Proportional to 704,546,506.88, 972,217,478.82 and 407,208,007.62

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Solution

The fourth proportional to 704,546,506.88, 972,217,478.82 and 407,208,007.62 is: 561,914,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,546,506.88 : 972,217,478.82 = 407,208,007.62 : x
  2. Step 2: Convert to fraction form
    704,546,506.88/972,217,478.82 = 407,208,007.62/x
  3. Step 3: Cross multiply
    704,546,506.88x = 972,217,478.82 × 407,208,007.62
  4. Step 4: Simplify right side
    704,546,506.88x = 395,894,742,523,631,744
  5. Step 5: Solve for x
    x = 395,894,742,523,631,744/704,546,506.88
  6. Step 6: Final answer
    x = 561,914,279.13

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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.