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Finding the Fourth Proportional to 506,404,999.80, 759,607,499.70 and 472,392,775.80

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Solution

The fourth proportional to 506,404,999.80, 759,607,499.70 and 472,392,775.80 is: 708,589,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,404,999.80 : 759,607,499.70 = 472,392,775.80 : x
  2. Step 2: Convert to fraction form
    506,404,999.80/759,607,499.70 = 472,392,775.80/x
  3. Step 3: Cross multiply
    506,404,999.80x = 759,607,499.70 × 472,392,775.80
  4. Step 4: Simplify right side
    506,404,999.80x = 358,833,095,301,780,672
  5. Step 5: Solve for x
    x = 358,833,095,301,780,672/506,404,999.80
  6. Step 6: Final answer
    x = 708,589,163.70

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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.