Home / 1,278,278,502.66-1,915,722,678.53-656,468,617.81

Finding the Fourth Proportional to 1,278,278,502.66, 1,915,722,678.53 and 656,468,617.81

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Solution

The fourth proportional to 1,278,278,502.66, 1,915,722,678.53 and 656,468,617.81 is: 983,832,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,278,502.66 : 1,915,722,678.53 = 656,468,617.81 : x
  2. Step 2: Convert to fraction form
    1,278,278,502.66/1,915,722,678.53 = 656,468,617.81/x
  3. Step 3: Cross multiply
    1,278,278,502.66x = 1,915,722,678.53 × 656,468,617.81
  4. Step 4: Simplify right side
    1,278,278,502.66x = 1,257,611,818,878,577,664
  5. Step 5: Solve for x
    x = 1,257,611,818,878,577,664/1,278,278,502.66
  6. Step 6: Final answer
    x = 983,832,409.19

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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.