Home / 210,440,979.86-290,344,769.30-146,859,627.74

Finding the Fourth Proportional to 210,440,979.86, 290,344,769.30 and 146,859,627.74

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Solution

The fourth proportional to 210,440,979.86, 290,344,769.30 and 146,859,627.74 is: 202,621,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,440,979.86 : 290,344,769.30 = 146,859,627.74 : x
  2. Step 2: Convert to fraction form
    210,440,979.86/290,344,769.30 = 146,859,627.74/x
  3. Step 3: Cross multiply
    210,440,979.86x = 290,344,769.30 × 146,859,627.74
  4. Step 4: Simplify right side
    210,440,979.86x = 42,639,924,733,468,168
  5. Step 5: Solve for x
    x = 42,639,924,733,468,168/210,440,979.86
  6. Step 6: Final answer
    x = 202,621,774.35

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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.