Home / 279,038,706.12-385,070,358.44-153,588,219.90

Finding the Fourth Proportional to 279,038,706.12, 385,070,358.44 and 153,588,219.90

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Solution

The fourth proportional to 279,038,706.12, 385,070,358.44 and 153,588,219.90 is: 211,950,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,706.12 : 385,070,358.44 = 153,588,219.90 : x
  2. Step 2: Convert to fraction form
    279,038,706.12/385,070,358.44 = 153,588,219.90/x
  3. Step 3: Cross multiply
    279,038,706.12x = 385,070,358.44 × 153,588,219.90
  4. Step 4: Simplify right side
    279,038,706.12x = 59,142,270,889,054,544
  5. Step 5: Solve for x
    x = 59,142,270,889,054,544/279,038,706.12
  6. Step 6: Final answer
    x = 211,950,061.38

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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.