Home / 279,038,660.98-385,070,296.28-153,588,174.74

Finding the Fourth Proportional to 279,038,660.98, 385,070,296.28 and 153,588,174.74

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Solution

The fourth proportional to 279,038,660.98, 385,070,296.28 and 153,588,174.74 is: 211,949,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,660.98 : 385,070,296.28 = 153,588,174.74 : x
  2. Step 2: Convert to fraction form
    279,038,660.98/385,070,296.28 = 153,588,174.74/x
  3. Step 3: Cross multiply
    279,038,660.98x = 385,070,296.28 × 153,588,174.74
  4. Step 4: Simplify right side
    279,038,660.98x = 59,142,243,952,236,208
  5. Step 5: Solve for x
    x = 59,142,243,952,236,208/279,038,660.98
  6. Step 6: Final answer
    x = 211,949,999.13

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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.