Home / 478,465,065-660,282,055.38-258,448,493.16

Finding the Fourth Proportional to 478,465,065, 660,282,055.38 and 258,448,493.16

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Solution

The fourth proportional to 478,465,065, 660,282,055.38 and 258,448,493.16 is: 356,659,064.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,465,065 : 660,282,055.38 = 258,448,493.16 : x
  2. Step 2: Convert to fraction form
    478,465,065/660,282,055.38 = 258,448,493.16/x
  3. Step 3: Cross multiply
    478,465,065x = 660,282,055.38 × 258,448,493.16
  4. Step 4: Simplify right side
    478,465,065x = 170,648,902,273,548,672
  5. Step 5: Solve for x
    x = 170,648,902,273,548,672/478,465,065
  6. Step 6: Final answer
    x = 356,659,064.07

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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.