Home / 320,771,876.49-442,865,117.67-220,473,016.56

Finding the Fourth Proportional to 320,771,876.49, 442,865,117.67 and 220,473,016.56

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Solution

The fourth proportional to 320,771,876.49, 442,865,117.67 and 220,473,016.56 is: 304,390,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,771,876.49 : 442,865,117.67 = 220,473,016.56 : x
  2. Step 2: Convert to fraction form
    320,771,876.49/442,865,117.67 = 220,473,016.56/x
  3. Step 3: Cross multiply
    320,771,876.49x = 442,865,117.67 × 220,473,016.56
  4. Step 4: Simplify right side
    320,771,876.49x = 97,639,808,421,904,256
  5. Step 5: Solve for x
    x = 97,639,808,421,904,256/320,771,876.49
  6. Step 6: Final answer
    x = 304,390,177.50

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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.