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Finding the Fourth Proportional to 655,686,858.29, 983,250,316.57 and 379,528,690.29

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Solution

The fourth proportional to 655,686,858.29, 983,250,316.57 and 379,528,690.29 is: 569,130,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,686,858.29 : 983,250,316.57 = 379,528,690.29 : x
  2. Step 2: Convert to fraction form
    655,686,858.29/983,250,316.57 = 379,528,690.29/x
  3. Step 3: Cross multiply
    655,686,858.29x = 983,250,316.57 × 379,528,690.29
  4. Step 4: Simplify right side
    655,686,858.29x = 373,171,704,875,040,000
  5. Step 5: Solve for x
    x = 373,171,704,875,040,000/655,686,858.29
  6. Step 6: Final answer
    x = 569,130,980.98

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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.