Home / 661,971,883.80-913,521,156.30-383,674,832.64

Finding the Fourth Proportional to 661,971,883.80, 913,521,156.30 and 383,674,832.64

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Solution

The fourth proportional to 661,971,883.80, 913,521,156.30 and 383,674,832.64 is: 529,471,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,971,883.80 : 913,521,156.30 = 383,674,832.64 : x
  2. Step 2: Convert to fraction form
    661,971,883.80/913,521,156.30 = 383,674,832.64/x
  3. Step 3: Cross multiply
    661,971,883.80x = 913,521,156.30 × 383,674,832.64
  4. Step 4: Simplify right side
    661,971,883.80x = 350,495,076,756,501,760
  5. Step 5: Solve for x
    x = 350,495,076,756,501,760/661,971,883.80
  6. Step 6: Final answer
    x = 529,471,243.92

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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.