Home / 651,118,307.20-977,811,201.60-345,008,291.20

Finding the Fourth Proportional to 651,118,307.20, 977,811,201.60 and 345,008,291.20

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Solution

The fourth proportional to 651,118,307.20, 977,811,201.60 and 345,008,291.20 is: 518,113,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,118,307.20 : 977,811,201.60 = 345,008,291.20 : x
  2. Step 2: Convert to fraction form
    651,118,307.20/977,811,201.60 = 345,008,291.20/x
  3. Step 3: Cross multiply
    651,118,307.20x = 977,811,201.60 × 345,008,291.20
  4. Step 4: Simplify right side
    651,118,307.20x = 337,352,971,780,234,688
  5. Step 5: Solve for x
    x = 337,352,971,780,234,688/651,118,307.20
  6. Step 6: Final answer
    x = 518,113,172.44

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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.