Home / 279,038,690.40-385,070,336.90-153,588,204.17

Finding the Fourth Proportional to 279,038,690.40, 385,070,336.90 and 153,588,204.17

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Solution

The fourth proportional to 279,038,690.40, 385,070,336.90 and 153,588,204.17 is: 211,950,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,690.40 : 385,070,336.90 = 153,588,204.17 : x
  2. Step 2: Convert to fraction form
    279,038,690.40/385,070,336.90 = 153,588,204.17/x
  3. Step 3: Cross multiply
    279,038,690.40x = 385,070,336.90 × 153,588,204.17
  4. Step 4: Simplify right side
    279,038,690.40x = 59,142,261,521,682,528
  5. Step 5: Solve for x
    x = 59,142,261,521,682,528/279,038,690.40
  6. Step 6: Final answer
    x = 211,950,039.75

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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.