Home / 357,117,143.90-492,875,445.66-217,968,765.89

Finding the Fourth Proportional to 357,117,143.90, 492,875,445.66 and 217,968,765.89

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Solution

The fourth proportional to 357,117,143.90, 492,875,445.66 and 217,968,765.89 is: 300,829,726.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,117,143.90 : 492,875,445.66 = 217,968,765.89 : x
  2. Step 2: Convert to fraction form
    357,117,143.90/492,875,445.66 = 217,968,765.89/x
  3. Step 3: Cross multiply
    357,117,143.90x = 492,875,445.66 × 217,968,765.89
  4. Step 4: Simplify right side
    357,117,143.90x = 107,431,452,627,993,952
  5. Step 5: Solve for x
    x = 107,431,452,627,993,952/357,117,143.90
  6. Step 6: Final answer
    x = 300,829,726.22

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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.