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Finding the Fourth Proportional to 478,112,291.20, 717,168,436.80 and 478,112,291.20

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Solution

The fourth proportional to 478,112,291.20, 717,168,436.80 and 478,112,291.20 is: 717,168,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,112,291.20 : 717,168,436.80 = 478,112,291.20 : x
  2. Step 2: Convert to fraction form
    478,112,291.20/717,168,436.80 = 478,112,291.20/x
  3. Step 3: Cross multiply
    478,112,291.20x = 717,168,436.80 × 478,112,291.20
  4. Step 4: Simplify right side
    478,112,291.20x = 342,887,044,494,770,368
  5. Step 5: Solve for x
    x = 342,887,044,494,770,368/478,112,291.20
  6. Step 6: Final answer
    x = 717,168,436.80

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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.