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Finding the Fourth Proportional to 611,998,996.48, 917,908,814.04 and 301,023,139.91

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Solution

The fourth proportional to 611,998,996.48, 917,908,814.04 and 301,023,139.91 is: 451,490,598.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,998,996.48 : 917,908,814.04 = 301,023,139.91 : x
  2. Step 2: Convert to fraction form
    611,998,996.48/917,908,814.04 = 301,023,139.91/x
  3. Step 3: Cross multiply
    611,998,996.48x = 917,908,814.04 × 301,023,139.91
  4. Step 4: Simplify right side
    611,998,996.48x = 276,311,793,348,795,520
  5. Step 5: Solve for x
    x = 276,311,793,348,795,520/611,998,996.48
  6. Step 6: Final answer
    x = 451,490,598.74

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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.