Home / 479,015,172.90-661,037,088.24-278,090,690.94

Finding the Fourth Proportional to 479,015,172.90, 661,037,088.24 and 278,090,690.94

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Solution

The fourth proportional to 479,015,172.90, 661,037,088.24 and 278,090,690.94 is: 383,762,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,015,172.90 : 661,037,088.24 = 278,090,690.94 : x
  2. Step 2: Convert to fraction form
    479,015,172.90/661,037,088.24 = 278,090,690.94/x
  3. Step 3: Cross multiply
    479,015,172.90x = 661,037,088.24 × 278,090,690.94
  4. Step 4: Simplify right side
    479,015,172.90x = 183,828,260,605,627,360
  5. Step 5: Solve for x
    x = 183,828,260,605,627,360/479,015,172.90
  6. Step 6: Final answer
    x = 383,762,918.18

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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.