Home / 747,339,997.20-1,121,009,995.80-743,035,325.10

Finding the Fourth Proportional to 747,339,997.20, 1,121,009,995.80 and 743,035,325.10

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Solution

The fourth proportional to 747,339,997.20, 1,121,009,995.80 and 743,035,325.10 is: 1,114,552,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,339,997.20 : 1,121,009,995.80 = 743,035,325.10 : x
  2. Step 2: Convert to fraction form
    747,339,997.20/1,121,009,995.80 = 743,035,325.10/x
  3. Step 3: Cross multiply
    747,339,997.20x = 1,121,009,995.80 × 743,035,325.10
  4. Step 4: Simplify right side
    747,339,997.20x = 832,950,026,669,602,688
  5. Step 5: Solve for x
    x = 832,950,026,669,602,688/747,339,997.20
  6. Step 6: Final answer
    x = 1,114,552,987.65

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1.5x scale

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.