Home / 747,339,986.70-1,121,009,980.05-743,035,314.60

Finding the Fourth Proportional to 747,339,986.70, 1,121,009,980.05 and 743,035,314.60

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Solution

The fourth proportional to 747,339,986.70, 1,121,009,980.05 and 743,035,314.60 is: 1,114,552,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,339,986.70 : 1,121,009,980.05 = 743,035,314.60 : x
  2. Step 2: Convert to fraction form
    747,339,986.70/1,121,009,980.05 = 743,035,314.60/x
  3. Step 3: Cross multiply
    747,339,986.70x = 1,121,009,980.05 × 743,035,314.60
  4. Step 4: Simplify right side
    747,339,986.70x = 832,950,003,196,191,488
  5. Step 5: Solve for x
    x = 832,950,003,196,191,488/747,339,986.70
  6. Step 6: Final answer
    x = 1,114,552,971.90

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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.