Home / 347,748,005.20-521,622,007.80-245,711,333.20

Finding the Fourth Proportional to 347,748,005.20, 521,622,007.80 and 245,711,333.20

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Solution

The fourth proportional to 347,748,005.20, 521,622,007.80 and 245,711,333.20 is: 368,566,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,748,005.20 : 521,622,007.80 = 245,711,333.20 : x
  2. Step 2: Convert to fraction form
    347,748,005.20/521,622,007.80 = 245,711,333.20/x
  3. Step 3: Cross multiply
    347,748,005.20x = 521,622,007.80 × 245,711,333.20
  4. Step 4: Simplify right side
    347,748,005.20x = 128,168,438,962,998,800
  5. Step 5: Solve for x
    x = 128,168,438,962,998,800/347,748,005.20
  6. Step 6: Final answer
    x = 368,566,999.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.