Home / 683,657,478.72-943,446,044.16-370,399,478.40

Finding the Fourth Proportional to 683,657,478.72, 943,446,044.16 and 370,399,478.40

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Solution

The fourth proportional to 683,657,478.72, 943,446,044.16 and 370,399,478.40 is: 511,150,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,657,478.72 : 943,446,044.16 = 370,399,478.40 : x
  2. Step 2: Convert to fraction form
    683,657,478.72/943,446,044.16 = 370,399,478.40/x
  3. Step 3: Cross multiply
    683,657,478.72x = 943,446,044.16 × 370,399,478.40
  4. Step 4: Simplify right side
    683,657,478.72x = 349,451,922,655,407,360
  5. Step 5: Solve for x
    x = 349,451,922,655,407,360/683,657,478.72
  6. Step 6: Final answer
    x = 511,150,588.61

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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.