Home / 657,931,013.70-986,896,520.55-528,790,850.70

Finding the Fourth Proportional to 657,931,013.70, 986,896,520.55 and 528,790,850.70

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Solution

The fourth proportional to 657,931,013.70, 986,896,520.55 and 528,790,850.70 is: 793,186,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,931,013.70 : 986,896,520.55 = 528,790,850.70 : x
  2. Step 2: Convert to fraction form
    657,931,013.70/986,896,520.55 = 528,790,850.70/x
  3. Step 3: Cross multiply
    657,931,013.70x = 986,896,520.55 × 528,790,850.70
  4. Step 4: Simplify right side
    657,931,013.70x = 521,861,850,654,504,512
  5. Step 5: Solve for x
    x = 521,861,850,654,504,512/657,931,013.70
  6. Step 6: Final answer
    x = 793,186,276.05

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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.