Home / 279,406,945.18-385,564,211.04-153,952,120.52

Finding the Fourth Proportional to 279,406,945.18, 385,564,211.04 and 153,952,120.52

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Solution

The fourth proportional to 279,406,945.18, 385,564,211.04 and 153,952,120.52 is: 212,444,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,406,945.18 : 385,564,211.04 = 153,952,120.52 : x
  2. Step 2: Convert to fraction form
    279,406,945.18/385,564,211.04 = 153,952,120.52/x
  3. Step 3: Cross multiply
    279,406,945.18x = 385,564,211.04 × 153,952,120.52
  4. Step 4: Simplify right side
    279,406,945.18x = 59,358,427,885,132,376
  5. Step 5: Solve for x
    x = 59,358,427,885,132,376/279,406,945.18
  6. Step 6: Final answer
    x = 212,444,353.69

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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.