Home / 789,928,818.32-1,090,088,409.70-437,497,242.21

Finding the Fourth Proportional to 789,928,818.32, 1,090,088,409.70 and 437,497,242.21

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Solution

The fourth proportional to 789,928,818.32, 1,090,088,409.70 and 437,497,242.21 is: 603,738,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,928,818.32 : 1,090,088,409.70 = 437,497,242.21 : x
  2. Step 2: Convert to fraction form
    789,928,818.32/1,090,088,409.70 = 437,497,242.21/x
  3. Step 3: Cross multiply
    789,928,818.32x = 1,090,088,409.70 × 437,497,242.21
  4. Step 4: Simplify right side
    789,928,818.32x = 476,910,673,009,403,264
  5. Step 5: Solve for x
    x = 476,910,673,009,403,264/789,928,818.32
  6. Step 6: Final answer
    x = 603,738,795.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.