Home / 279,038,654.45-385,070,287.33-153,588,168.22

Finding the Fourth Proportional to 279,038,654.45, 385,070,287.33 and 153,588,168.22

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Solution

The fourth proportional to 279,038,654.45, 385,070,287.33 and 153,588,168.22 is: 211,949,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,654.45 : 385,070,287.33 = 153,588,168.22 : x
  2. Step 2: Convert to fraction form
    279,038,654.45/385,070,287.33 = 153,588,168.22/x
  3. Step 3: Cross multiply
    279,038,654.45x = 385,070,287.33 × 153,588,168.22
  4. Step 4: Simplify right side
    279,038,654.45x = 59,142,240,065,180,664
  5. Step 5: Solve for x
    x = 59,142,240,065,180,664/279,038,654.45
  6. Step 6: Final answer
    x = 211,949,990.16

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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.