Home / 651,381,347.40-977,072,021.10-345,271,331.40

Finding the Fourth Proportional to 651,381,347.40, 977,072,021.10 and 345,271,331.40

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Solution

The fourth proportional to 651,381,347.40, 977,072,021.10 and 345,271,331.40 is: 517,906,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,381,347.40 : 977,072,021.10 = 345,271,331.40 : x
  2. Step 2: Convert to fraction form
    651,381,347.40/977,072,021.10 = 345,271,331.40/x
  3. Step 3: Cross multiply
    651,381,347.40x = 977,072,021.10 × 345,271,331.40
  4. Step 4: Simplify right side
    651,381,347.40x = 337,354,957,598,885,888
  5. Step 5: Solve for x
    x = 337,354,957,598,885,888/651,381,347.40
  6. Step 6: Final answer
    x = 517,906,997.10

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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.