Home / 747,339,981.70-1,121,009,972.55-743,035,309.60

Finding the Fourth Proportional to 747,339,981.70, 1,121,009,972.55 and 743,035,309.60

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Solution

The fourth proportional to 747,339,981.70, 1,121,009,972.55 and 743,035,309.60 is: 1,114,552,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,339,981.70 : 1,121,009,972.55 = 743,035,309.60 : x
  2. Step 2: Convert to fraction form
    747,339,981.70/1,121,009,972.55 = 743,035,309.60/x
  3. Step 3: Cross multiply
    747,339,981.70x = 1,121,009,972.55 × 743,035,309.60
  4. Step 4: Simplify right side
    747,339,981.70x = 832,949,992,018,376,704
  5. Step 5: Solve for x
    x = 832,949,992,018,376,704/747,339,981.70
  6. Step 6: Final answer
    x = 1,114,552,964.40

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Double scale
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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.