Home / 382,465,052.78-572,510,016.30-207,152,663.90

Finding the Fourth Proportional to 382,465,052.78, 572,510,016.30 and 207,152,663.90

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Solution

The fourth proportional to 382,465,052.78, 572,510,016.30 and 207,152,663.90 is: 310,085,782.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,465,052.78 : 572,510,016.30 = 207,152,663.90 : x
  2. Step 2: Convert to fraction form
    382,465,052.78/572,510,016.30 = 207,152,663.90/x
  3. Step 3: Cross multiply
    382,465,052.78x = 572,510,016.30 × 207,152,663.90
  4. Step 4: Simplify right side
    382,465,052.78x = 118,596,974,985,977,408
  5. Step 5: Solve for x
    x = 118,596,974,985,977,408/382,465,052.78
  6. Step 6: Final answer
    x = 310,085,782.02

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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.