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Finding the Fourth Proportional to 655,686,855.29, 983,250,312.07 and 379,528,687.29

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Solution

The fourth proportional to 655,686,855.29, 983,250,312.07 and 379,528,687.29 is: 569,130,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,686,855.29 : 983,250,312.07 = 379,528,687.29 : x
  2. Step 2: Convert to fraction form
    655,686,855.29/983,250,312.07 = 379,528,687.29/x
  3. Step 3: Cross multiply
    655,686,855.29x = 983,250,312.07 × 379,528,687.29
  4. Step 4: Simplify right side
    655,686,855.29x = 373,171,700,217,409,984
  5. Step 5: Solve for x
    x = 373,171,700,217,409,984/655,686,855.29
  6. Step 6: Final answer
    x = 569,130,976.48

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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.