Home / 298,572,459.90-412,031,905.86-166,421,833.98

Finding the Fourth Proportional to 298,572,459.90, 412,031,905.86 and 166,421,833.98

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Solution

The fourth proportional to 298,572,459.90, 412,031,905.86 and 166,421,833.98 is: 229,663,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,572,459.90 : 412,031,905.86 = 166,421,833.98 : x
  2. Step 2: Convert to fraction form
    298,572,459.90/412,031,905.86 = 166,421,833.98/x
  3. Step 3: Cross multiply
    298,572,459.90x = 412,031,905.86 × 166,421,833.98
  4. Step 4: Simplify right side
    298,572,459.90x = 68,571,105,431,495,904
  5. Step 5: Solve for x
    x = 68,571,105,431,495,904/298,572,459.90
  6. Step 6: Final answer
    x = 229,663,196.18

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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.